Does body temperature increase during exercise? Treatment of VSD - treatment of vegetative-vascular dystonia. How to effectively reduce your temperature after exercise

Is exercise good for colds? This question was answered by scientists in a study conducted by the College of Sports Medicine in the USA. Those who conducted the study found that exercising when you have a mild cold helps reduce symptoms.

And, conversely, strength training can completely unsettle a person during a cold or, even more so, the flu. Strength training in strenuous sports such as powerlifting, arm wrestling and bodybuilding has shown significant worsening of cold symptoms in people who did not stop exercising.

Sports can help you recover faster

Scientists came to this conclusion during their research. But only if, scientists believe, physical activity does not deplete the body. After all, what a healthy person can do is sometimes beyond the capabilities of a sick person. A cold weakens the human immune system, and with it all other systems of the body.

Therefore, even with relatively normal health and a cold in the initial stage, intense exercise can only make cold symptoms worse. But in more severe conditions, but with optimal load (simple exercises and a healthy diet, plenty of water throughout the day), sports can shorten the duration of the disease and alleviate its symptoms.

Even taking into account the fact that the average person gets a cold up to 5 times a year and this person is an athlete, a cold can prevent him from exercising. But you shouldn’t sacrifice your health to sports. If you get sick, reduce your exercise load and you will recover much faster.

What happened in the groups of subjects during the experiment?

Scientists at the American University of Indiana conducted a study of 50 people under the leadership of Professor Weidneris, MD. These 50 people - students - agreed to be injected with virus-infected serum, and then scientists observed them for 10 days. At the same time, 25 students were actively involved in sports during this entire period, while others practiced only light exercises.

After 10 days, it turned out that those students who did not expose their bodies to too much physical stress when they had a cold recovered more quickly. Their cold symptoms were not as severe as those who did extreme strength training. You can draw your own conclusion.

Reality and the cold experiment

Experiment with students - this needs to be taken into account! - Conducted under mild laboratory conditions. The virus he introduced was not severe and did not cause very serious cold symptoms, as often happens in real life. But those who periodically suffer from colds should know that in ordinary life a person suffers from many strains of viruses, against which the human immune system can be very difficult to fight.

In addition, unrecognized viruses can cause serious complications: disruption of the heart, blood vessels, respiratory system, kidneys, liver, cause intoxication of the entire body, which causes unbearable pain in the muscles and head. And then it can be quite difficult to distinguish the flu from a cold, choose the right treatment, and even calculate the duration and intensity of physical activity. Your doctor will help you with all this.

If you are sick, do not torture yourself, but get plenty of rest, and do the exercises that you can do. This way you will recover faster and there will be less chance that the cold will return soon.

Complications due to physical overload

It is quite obvious that even a mild cold is a burden on all body systems. It suppresses anabolic processes in muscles, activates the production of the stress hormone cortisol, which poisons your tissues and puts muscles in a painful state, destroying them. If a person does not give himself a break by actively playing sports, these processes are accelerated and aggravated. And then you will not only get no benefit from the training, it will significantly harm you.

Do not play sports or give yourself strenuous exercise if:

• You're in the midst of a cold
• Your symptoms are getting worse
• You feel increased weakness and fatigue
• You don't get enough sleep
• You have an elevated body temperature - over 38 degrees Celsius
• Your muscles and head hurt
• You are coughing and wheezing
• It's hard for you to breathe

If the disease is severe, it is better to avoid physical activity for about 3-4 days after recovery - this will guarantee you the best effect of getting rid of the cold.

What remedies will help you cope with a cold?

Please note that these remedies will not shorten the duration of your cold, but they may reduce the severity of cold symptoms

1. Taking antipyretic medications, such as Theraflu
2. Sucking on cough drops with a pain-relieving effect, such as Travesil
3. For severe cough symptoms, take antitussive syrups, such as Tussin or Travesil
4. To reduce irritation and dry throat, you can use sprays such as lugol, kameton or inhalipt

Preventing colds in combination with exercise

Even if you are actively involved in physical education and sports, do not forget about the following methods of preventing colds:

• Be sure to take your vitamins about a month before the onset of cold seasons - in October and April. As recommended by your doctor, you should take vitamin complexes at least twice a year – in spring and autumn.
• Rest and get enough sleep - this will reduce the risk of illness
• Take vitamin C and glutamine as recommended by your doctor, especially before seasonal flu epidemics
• Boost your immunity with echinacea extract (unless you have high blood pressure - echinacea will increase it even more).
• Temper yourself at any time of the year, but gradually.

So, physical activity during a cold, as we have seen, depends on the state of health and the severity of the disease. Therefore, when deciding on sports during a cold, you need to be guided by your doctor’s prescriptions and your own common sense.

Muscle activity, more than an increase in any other physiological function, is accompanied by the breakdown and resynthesis of ATP - this is one of the main sources of contraction energy in the muscle cell. But a small part of the potential energy of macroergs is spent on external work, the rest is released in the form of heat - from 80 to 90% - and is “washed out” from the muscle cells by venous blood. Consequently, with all types of muscle activity, the load on the thermoregulatory apparatus sharply increases. If he were unable to cope with the release of more heat than at rest, then the human body temperature would increase by about 6°C in an hour of hard work.

Increased heat transfer in humans is ensured during work due to convection and radiation, due to an increase in the temperature of the skin and increased exchange of the skin layer of air due to body movement. But the main and most effective way of heat transfer is the activation of sweating.

The mechanism of polypnea in humans at rest plays a certain, but very minor role. Rapid breathing increases heat transfer from the surface of the respiratory tract by warming and humidifying the inhaled air. At a comfortable ambient temperature, no more than 10% is lost due to this mechanism, and this figure practically does not change compared to the general level of heat generation during muscular work.

As a result of a sharp increase in heat generation in working muscles, after a few minutes the temperature of the skin above them increases, not only due to the direct transfer of heat along the gradient from the inside to the outside, but also due to increased blood flow through the skin. Activation of the sympathetic division of the autonomic nervous system and the release of catecholamines during work lead to tachycardia and a sharp increase in MVB with narrowing of the vascular bed in the internal organs and its expansion in the skin.

Increased activation of the sweating apparatus is accompanied by the release of bradykinin by sweat gland cells, which has a vasodilatory effect on nearby muscles and counteracts the systemic vasoconstrictor effect of adrenaline.

Competitive relationships may arise between the needs for increased blood supply to muscles and skin. When working in a heating microclimate, blood flow through the skin can reach 20% of the IOC. Such a large volume of blood flow does not serve any other needs of the body, except for purely thermoregulatory ones, since the skin tissue’s own needs for oxygen and nutrients are very small. This is one example of the fact that, having emerged at the last stage of the evolution of mammals, the function of thermoregulation occupies one of the highest places in the hierarchy of physiological regulations.

Measuring body temperature while working under any conditions usually reveals an increase in core temperature from a few tenths to two or more degrees. During the first studies, it was assumed that this increase was explained by an imbalance between heat transfer and heat generation due to the functional insufficiency of the physical thermoregulation apparatus. However, in the course of further experiments it was established that an increase in body temperature during muscle activity is physiologically regulated and is not a consequence of a functional failure of the thermoregulatory apparatus. In this case, a functional restructuring of heat exchange centers occurs.

When working at moderate power, after an initial rise, body temperature stabilizes at a new level, the degree of increase is directly proportional to the power of the work performed. The severity of such a regulated rise in body temperature does not depend on fluctuations in external temperature.

An increase in body temperature is beneficial during work: the excitability, conductivity, and lability of nerve centers increase, the viscosity of muscles decreases, and the conditions for the separation of oxygen from hemoglobin in the blood flowing through them improve. A slight increase in temperature can be noted even in the pre-start state and without warming up (it occurs conditionally reflexively).

Along with the regulated rise during muscle work, an additional, forced rise in body temperature can also be observed. It occurs at excessively high temperature and air humidity, with excessive insulation of the worker. This progressive increase can lead to heat stroke.

In vegetative systems, when performing physical work, a whole complex of thermoregulatory reactions is carried out. The frequency and depth of breathing increase, due to which pulmonary ventilation increases. At the same time, the importance of the respiratory system in the heat exchange of breathing with the environment increases. Rapid breathing becomes more important when working in low temperatures.

At an ambient temperature of about 40°C, a person’s resting pulse increases by an average of 30 beats/min compared to comfort conditions. But when performing work of moderate intensity under the same conditions, heart rate increases by only 15 beats per minute compared to the same work in comfortable conditions. Thus, the work of the heart turns out to be comparatively more economical when performing physical activity than at rest.

As for the magnitude of vascular tone, during physical work there is a competitive relationship not only between the blood supply to the muscles and skin, but also between both of them and the internal organs. The vasoconstrictor influences of the sympathetic department of the autonomic nervous system during operation are especially clearly manifested in the gastrointestinal tract. The result of decreased blood flow is a decrease in juice secretion and a slowdown in digestive activity during intense muscular work.

It should be noted that a person can begin to perform even heavy work at normal body temperature, and only gradually, much slower than pulmonary ventilation, does the core temperature reach values ​​corresponding to the level of general metabolism. Thus, an increase in the core temperature of the body is a necessary condition not for starting work, but for its continuation for a more or less long time. Perhaps, therefore, the main adaptive significance of this reaction is the restoration of performance during the muscular activity itself.

The influence of temperature and humidity on sports (physical) performance

The significance of the different ways the body transfers heat to the environment is not the same under conditions of rest and during muscle activity and varies depending on the physical factors of the external environment.

Under conditions of increasing temperature and air humidity, heat transfer is increased in two main ways: increased skin blood flow, which increases the transfer of heat from the core to the surface of the body and ensures the supply of sweat glands with water, and increased sweating and evaporation.

Skin blood flow in an adult under comfortable environmental conditions is about 0.16 l/sq.m at rest. m/min, and during operation in conditions of very high external temperatures it can reach 2.6 l/sq. m./min. This means that up to 20% of cardiac output can be directed into the cutaneous vasculature to prevent the body from overheating. Load power has virtually no effect on skin temperature.

Skin temperature is linearly related to the amount of skin blood flow. Increased blood flow in the skin increases its temperature, and if the ambient temperature is lower than the skin temperature, then heat loss by conduction, convection and radiation increases. Additional air movement during work helps reduce hyperthermia. An increase in skin temperature also reduces the effect of external radiation on the body.

The rate of sweating and sweating depends on a number of factors, the main ones being the rate of energy production and the physical conditions of the environment. In this case, the rate of sweating depends on both the temperature of the core and the temperature of the body shell.

During intense sports activities, the rate of sweating is high. It is also necessary to take into account that, other things being equal, an increase in air speed speeds up the process of sweat evaporation. High air humidity, even at a relatively low temperature, makes it difficult for sweat to evaporate. This leads to a decrease in the rate of sweating and an additional increase in body temperature.

One of the most severe consequences of increased sweating during muscular work performed in conditions of elevated air temperature is a violation of the body’s water-salt balance due to the development of acute dehydration. Dehydration is accompanied by a decrease in blood plasma volume, hemoconcentration, and a decrease in the volume of intercellular and intracellular fluid. With working dehydration, a decrease in physical performance is especially noticeable. It should be noted that significant working dehydration develops only with long-term (more than 30 minutes) and fairly intense exercise. During hard but short-term work, even under conditions of elevated temperature and air humidity, any significant dehydration does not have time to develop.

Continuous or repeated exposure to conditions of elevated temperature and humidity causes gradual adaptation to these specific environmental conditions, resulting in a state of thermal adaptation, the effect of which lasts for several weeks. Thermal adaptation is caused by a set of specific physiological changes, the main of which are increased sweating, a decrease in the temperature of the core and shell of the body at rest, their change during muscular work, as well as a decrease in heart rate at rest and during exercise under conditions of elevated temperature. A decrease in heart rate is accompanied by an increase in systolic volume (via an increase in venous return). During the period of thermal adaptation, there is also an increase in BCC at rest, a decrease in the tonic activity of the sympathetic division of the autonomic nervous system, and an increase in the mechanical intensity of the physical work performed.

Training and competitive loads in sports that require endurance cause a significant increase in core temperature - up to 40°C even in neutral environmental conditions. Systematic training sessions aimed at endurance training lead to improved thermoregulation: heat production is reduced, and the ability to lose heat is improved due to increased heat generation. Accordingly, athletes, while working at normal or high air temperatures, have lower internal and skin temperatures than untrained people performing the same volume of workload. The salt content in the sweat of athletes is also lower.

During training in neutral conditions, the blood volume increases, the reactions of blood flow redistribution are improved with its decrease in the vessels of the skin. Therefore, well-trained endurance athletes tend to be better able to at least handle varying power levels of work in hot conditions. At the same time, sports training in itself under neutral environmental conditions cannot completely replace specific thermal adaptation.

As the external temperature decreases, the difference between it and the body surface temperature increases, which leads to increased heat loss. The main mechanisms of protecting the body from heat loss in cold conditions are the narrowing of peripheral vessels and increased heat production.

As a result of the narrowing of skin vessels, the convection transfer of heat from the core of the body to its surface decreases. Vasoconstriction can increase the insulating capacity of the body membrane by 6 times. However, this may lead to a gradual decrease in skin temperature. The most pronounced vasoconstriction is observed in the extremities; the temperature of the tissues of the distal parts of the extremities can decrease to ambient temperature.

In addition to cutaneous vasoconstriction, the fact that in cold conditions blood flows primarily through the deep veins plays an important role in reducing internal heat conduction in the body. Heat exchange occurs between arteries and veins: venous blood returning to the core of the body is heated by arterial blood.

Another important mechanism of adaptation to cold conditions is increased heat production due to cold shivering and due to an increase in the level of metabolic processes. When working in cold conditions, the body's thermal insulation is significantly reduced and heat loss (conduction and convection) increases. Accordingly, to maintain heat balance, greater heat generation is required than under resting conditions.

Increased energy expenditure (higher rate of oxygen consumption) when working at relatively low power in cold conditions is associated with cold shivering, which disappears with increasing loads to significant ones, and thereby the regulation of working body temperature is stabilized.

Hypothermia leads to a decrease in BMD, which is based on a decrease in cardiac output due to a decrease in maximum heart rate. A person’s endurance decreases, and the results of exercises that require great dynamic strength also decrease.

Despite the fact that in many sports training sessions and competitions take place in conditions of low temperatures, thermoregulation problems mainly arise only at the beginning of exposure to the cold or during repeated exercise with alternating periods of high activity and rest. In exceptional cases, the amount of heat lost may exceed that produced during muscle activity.

Long-term living in cold conditions to some extent increases a person’s ability to withstand cold, i.e. maintain the required core temperature at a low ambient temperature. Acclimatization is based on two main mechanisms. Firstly, this is a reduction in heat loss, and secondly, an increase in heat exchange. In people acclimatized to cold, vasoconstriction of the skin is reduced, which prevents cold damage to the peripheral parts of the body and allows coordinated movements of the limbs in low temperatures.

During the process of cold acclimatization, body heat production increases, endocrine and intracellular metabolic changes occur. However, many researchers have not found human acclimatization to cold, especially with regard to muscle activity in cold conditions. However, physically fit people tolerate cold conditions better than untrained people. Physical training produces effects similar in some respects to cold acclimatization: trained individuals respond to cold exposure with a greater increase in heat production and a smaller decrease in skin temperature than untrained individuals.

Under conditions of physical activity, core temperature rises and mean skin temperature decreases due to work-induced sweat production and evaporation (Figure 24.3). During submaximum load operation, the degree of internal temperature rise is almost independent of the ambient temperature at

within a wide range (15-35°C) while sweating occurs (M. Zsigrt et al., 1972). Dehydration leads to a rise in core temperature and thereby limits performance.

Rectal temperature during marathon running has been found to reach 39-40°C, and in some cases almost 41°C (M.V. Magop et al., 1977).

Chapter 25 BIOLOGICAL RHYTHMS

Biological rhythms are periodically repeating changes in the nature and intensity of biological processes and phenomena in living organisms.

The biological rhythms of physiological functions are so precise that they are often called the “biological clock.” There is reason to believe that the timekeeping mechanism is contained in every molecule of the human body, including DNA molecules that store genetic information. The cellular biological clock is called .” They are considered “small”, in contrast to the “large” ones, which are believed to be located in the brain and synchronize all physiological processes in the body.

CLASSIFICATION OF BIORHYTHMS

Rhythms set by internal “clocks” or pacemakers are called endogenous, Unlike exogenous, which are regulated by external factors. Most biological rhythms are mixed, that is, partly endogenous and partly exogenous.

In many cases, the main external factor regulating rhythmic activity is photoperiod, i.e., the length of daylight. This is the only factor that can be a reliable indication of time and is used to set the "clock".

The exact nature of the clock is unknown, but there is no doubt that there is a physiological mechanism at work that may involve both neural and endocrine components.

Most rhythms are formed during the process of individual development (ontogenesis). Thus, daily fluctuations in activity vary

personal functions in a child are observed before birth; they can be registered already in the second half of pregnancy.

Biological rhythms are realized in close interaction with the environment and reflect the peculiarities of the organism’s adaptation to the cyclically changing factors of this environment. The rotation of the Earth around the Sun (with a period of about a year), the rotation of the Earth around its axis (with a period of about 24 hours), the rotation of the Moon around the Earth (with a period of about 28 days) lead to fluctuations in illumination, temperature, humidity, electromagnetic field strength, etc. etc., serve as a kind of indicators, or sensors, of time for the “biological clock”.

Biological rhythms have large differences in frequency or period. There is a group of so-called high-frequency biological rhythms, the periods of oscillations of which range from a fraction of a second to half an hour. Examples include fluctuations in the bioelectrical activity of the brain, heart, muscles, and other organs and tissues. By recording them using special equipment, they obtain valuable information about the physiological mechanisms of the activity of these organs, which is also used for diagnosing diseases (electroencephalography, electromyography, electrocardiography, etc.). The rhythm of breathing can also be included in this group.

Biological rhythms with a period of 20-28 hours are called circus dians(circadian, or circadian), for example, periodic fluctuations throughout the day in body temperature, pulse rate, blood pressure, human performance, etc.

There is also a group of low frequency biological rhythms; These are peri-weekly, peri-monthly, seasonal, peri-annual, perennial rhythms.

The basis for identifying each of them is clearly recorded fluctuations of any functional indicator. For example, the peri-weekly biological rhythm corresponds to the level of excretion of certain physiologically active substances in the urine, the peri-monthly rhythm corresponds to the menstrual cycle in women, seasonal biological rhythms correspond to changes in sleep duration, muscle strength, morbidity, etc.

The most studied is the circadian biological rhythm, one of the most important in the human body, acting as a conductor of numerous internal rhythms.

Circadian rhythms are highly sensitive to the action of various negative factors, and disruption of the coordinated functioning of the system that generates these rhythms is one of the first symptoms.

The main reason for daily fluctuations in physiological functions in the human body is periodic changes in the excitability of the nervous system, which inhibit or stimulate metabolism. As a result of changes in metabolism, changes in various physiological functions occur (Fig. 25.1). For example, the respiratory rate is higher during the day than at night. At night, the function of the digestive apparatus is reduced.

It has been established that the daily dynamics of body temperature has a wave-like character. At about 6 p.m., the temperature reaches its maximum, and by midnight it decreases: its minimum value is between 1 a.m. and 5 a.m. The change in body temperature during the day does not depend on whether a person is sleeping or engaged in intensive work.

Body temperature determines the speed of biological reactions; during the day, metabolism is most intense. Sleep and awakening are closely related to the circadian rhythm. A decrease in body temperature serves as a kind of internal signal for rest to sleep. Throughout the day it changes with an amplitude of up to 1.3°C.

By measuring body temperature under the tongue (with a regular medical thermometer) every 2-3 hours for several days, you can quite accurately determine the most appropriate moment for going to bed, and use temperature peaks to determine periods of maximum performance. During the day, the heart rate (HR) increases, blood pressure (BP) increases, and breathing becomes more frequent. Day after day, by the time of awakening, as if anticipating the increasing need of the body, the content of adrenaline in the blood increases - a substance that increases heart rate, increases blood pressure, and activates the work of the whole organism; By this time, biological stimulants accumulate in the blood. A decrease in the concentration of these substances in the evening is an indispensable condition for restful sleep. It is not without reason that sleep disturbances are always accompanied by excitement and anxiety: in these conditions, the concentration of adrenaline and other biologically active substances in the blood increases, and the body is in a state of “combat readiness” for a long time. Subject to biological rhythms, each physiological indicator can significantly change its level during the day.

Biological rhythms are the basis for the rational regulation of a person’s life schedule, since high performance and good health can only be achieved if the rhythm of life corresponds to the rhythm of physiological functions inherent to the body. In this regard, it is necessary to wisely organize the regime of work (training) and rest, as well as food intake. Deviation from the correct diet can lead to significant weight gain, which in turn, disrupting the body’s vital rhythms, causes changes in metabolism. For example, if you eat food with a total calorie content of 2000 kcal only in the morning, weight decreases; if the same food is taken in the evening, it increases. In order to maintain the body weight achieved by the age of 20-25, food should be

A person tolerates acclimatization more easily if he takes (3-5 times a day) hot meals and adaptogens, vitamin complexes, and gradually increases physical activity as he adapts to them (Fig. 25.3).

If these conditions are not met, so-called desynchronosis (a kind of pathological condition) may occur.

The phenomenon of desynchronosis is also observed in athletes, especially in those training in hot and humid climates or mid-mountain regions. Therefore, an athlete flying to international competitions must be well prepared. Today there is a whole system of measures aimed at maintaining familiar biorhythms.

For the human biological clock, the correct movement is important not only in the daily rhythm, but also in the so-called low-frequency rhythms, for example, in the periweekly rhythm.

It has now been established that the weekly rhythm is artificially developed: no convincing data have been found on the existence of innate seven-day rhythms in humans. Obviously, this is an evolutionarily fixed habit. The seven-day week became the basis of rhythm and rest in ancient Babylon. Over thousands of years, a weekly social rhythm has developed: people are more productive in the middle of the week than at the beginning or end of it.

The human biological clock reflects not only daily natural rhythms, but also those that have a longer duration, such as seasonal ones. They manifest themselves in an increase in metabolism in the spring and a decrease in it in the fall and winter, an increase in the percentage of hemoglobin in the blood and a change in the excitability of the respiratory center in spring and summer.

The state of the body in summer and winter to some extent corresponds to its state during the day and night. Thus, in winter, compared to summer, the blood sugar level decreased (a similar phenomenon occurs at night), and the amount of ATP and cholesterol increased.

Do you feel increased body temperature, although there are no signs of a cold?
I measured it and it was indeed elevated – 37.3°C. How to react to this?

Low-grade fever.

A human body temperature of up to 37°C is normal. A low-grade fever is one that exceeds 37 degrees by a few tenths. It is precisely this kind of low-grade fever that accompanies the already not very sweet existence of a VSD student.

Typically, its indicators for VSD are in the range of 37.1-37.5°C. Everything that is higher than these values ​​is no longer vegetative-vascular dystonia, but something else. But often, with VSD, a person’s temperature may constantly be in the range of 36.8 -37.0 during the day and not be felt. It would seem that this is within the normal range. But if such an increase is observed constantly, then you must definitely pay attention to it. These may be the first signs of VSD.

Why increased body temperature.

With vegetative-vascular dystonia, the reason for the appearance of a slightly elevated body temperature is associated with a malfunction of the thermoregulation center. This center is located in one of the parts of the brain called the hypothalamus. It must provide the human body, regardless of environmental conditions, with a constant temperature of 36.6°C.

The continuous and daily bombardment of it with increased doses of adrenaline, which is released into the blood during fear, quarrels and panic attacks, leads to malfunctions in the functioning of this part of the autonomic nervous system. As a result, body temperature jumps from 36.0 to 37.5 degrees, depending on physical activity.

Temperature for no reason.

There is no increase in body temperature without a reason. There are certainly reasons for low-grade fever. To determine whether a constant low-grade fever is of an organic nature, that is, it appeared as a result of any inflammatory diseases, it is necessary to undergo the following examination:

1. Take a general blood test, sugar and blood biochemistry.

2. Take a blood test for thyroid hormones.

3. Take a general urine test.

4. Perform fluorography of the lungs.

After this, you need to visit a general practitioner with the results of the research, who will draw a conclusion about the presence or absence of organic diseases that are the cause of a slightly elevated body temperature. If none are found, then further searching for the reason that the body temperature is elevated makes no sense. We can say with great confidence that you have VSD and panic disorder, that is, a disruption of the autonomic nervous system.

Temperature without signs of a cold.

Low-grade fever without cold symptoms with vegetative-vascular dystonia has its own differences:

1. The temperature rises without signs of a cold during any physical activity, even simple walking.

2. Body temperature indicators return to normal after a short rest in a lying position.

3. During sleep, body temperature is always normal or slightly lower (you can try to measure it by accidentally waking up at night, or when you can’t sleep).

4. Increased body temperature appears during the day.

If you don’t have snot, and your throat doesn’t hurt, and your body temperature becomes low-grade after you get out of bed, then you have VSD! Prolonged low-grade fever with VSD appears only during the day and lasts for years.

You can check this diagnosis like this.

After physical activity, measure your body temperature. Horrified by the fact that the thermometer showed 37.4°C, I lay down in a comfortable place for an hour. Never rush to take cold medicine. After an hour's rest, measure your body temperature again. It will not only be normal, but may even drop slightly below normal - to 36.0-36.4°C.

What does elevated temperature lead to during VSD?

From such changes in the work of the thermoregulation center, not only the thermometer is lost, but the person suffers incredibly. It is this instability in the regulation of body temperature that leads to two more symptoms characteristic of VSD.

The first of them is increased sweating under normal environmental conditions. That is, it’s not hot outside, no one is sweating nearby, and you’re the only one covered in drops of sweat.

Secondly, you freeze even on summer days, not to mention the cold season. No warm clothes or shoes can save you from feeling cold, especially in winter. Hands and feet become numb even in warm gloves and the furthest boots. One of the attendant troubles is that people who shake hands with you feel the icy coldness of your hand.

Another hormonal change in the body, namely menopause, may result in increased body temperature and sweating. But these symptoms during menopause are in no way related to physical activity, and they can “get hot and sweaty” even in a state of complete rest. This cannot possibly happen with VSD and panic disorder.

Remember forever, with VSD, low-grade fever appears at the slightest physical exertion, and goes away after a short rest in a supine position.

How to treat elevated temperature with VSD.

How to get rid of constant elevated body temperature? There is no point in worrying too much about this. If you had any terrible diseases, then the results of the tests that you did according to the list above would definitely reveal them. I hope you already understand that this temperature is one of the most basic symptoms of VSD. Therefore, low-grade fever with VSD should be treated not with antipyretic drugs, but exclusively with sedatives.

The disappearance of elevated body temperature, as well as its reappearance (return), indicate how correct and effective the prescribed treatment for VSD is.

Changes in an athlete's well-being after physical activity are considered common. Aching muscle pain, fatigue, slight chills, and fleeting attacks of nausea have been experienced more than once by all adherents of a healthy lifestyle. Many athletes report a rise in temperature after training in the gym. In most cases, this condition is not associated with inflammatory processes occurring in the body.

Reasons for increased temperature after exercise

Inexperienced athletes often wonder why the temperature rises and chills appear after training. This phenomenon has objective reasons:

• cardio load that caused an acceleration of metabolism;
• heat loss with sweating;
• stress loads caused by overtraining, muscle micro-tears, the formation of lactic acid, and a decrease in glycogen reserves in the depot;
• feeling unwell shortly before training, flu or ARVI;
• taking medications that affect body thermoregulation;
• increased thyroid function;
• presence of neurogenic hyperthermia;
• increased levels of the hormone prolactin.

Now you know whether your temperature can rise after exercise. Sometimes the rise in the thermometer after physical activity is insignificant and shows 37–37.5 degrees. If the mark has jumped 38 degrees, then take care of your health and come to the gym after a 2-3 day break.

Advice! If you experience severe nausea, headaches, joint pain, high fever or other alarming symptoms, stop exercising immediately.

Is it possible to train with a fever?

It is impossible to answer this question unequivocally - it all depends on the cause of deviations in body thermoregulation. If heat transfer is related to the reasons described above, then there is no need to worry. The athlete needs to achieve cooling of the body to normal levels. To do this, it is recommended to reduce the intensity of exercise, take a break, and drink more fluids. Once your temperature is back to normal, you can continue training.

If the temperature is of a viral or bacterial nature (acute respiratory infections, influenza, ARVI, etc.), then training is strictly prohibited until the athlete has fully recovered.

The benefits and harms of training with a temperature

Some athletes cannot live a day without sports and go to the gym even during illness. Is there any benefit from such a visit, what harm does a person do to a heated body?

In this case, there are no and cannot be any advantages from training. But there are many disadvantages.

Physical activity during inflammatory diseases is fraught with complications on the heart, hypoxia, increased levels of the hormone cortisol, which destroys muscle tissue, and deterioration of the general condition. Can a sick athlete have a fever after training? Yes, the next day after visiting the gym, a weakened body will probably respond by raising the thermometer above 38°.

If the cold is mild, then classes are allowed, but in a lighter form. The athlete needs to avoid sweating and monitor the pulse (maximum 120 beats per minute).

How to avoid fever?

To prevent healthy athletes from developing a fever during training, the following rules must be followed:

1. Play sports only if you feel well and are free from any illness.
2. Drink more fluids to cool your body through sweating.
3. Calculate the intensity of exercise correctly.
4. Avoid consuming products containing caffeine.
5. Keep a training diary. Simple planning of classes in the gym allows you to control the results and protects you from overtraining.
6. During the hot season, exercise outside or in air-conditioned rooms.
7. Reduce protein in your diet to reduce the likelihood of inflammation in the liver and kidneys.
8. Stop using fat burners.
9. Give your body enough time to recover between workouts.

Advice! If a rise in temperature is noted when performing a certain exercise, then replace it with another type of physical activity.

How can you effectively reduce your temperature after exercise?

There are several ways to normalize the thermoregulation of an athlete’s body. They are divided into three types: the use of medications, folk remedies and the physical effect of natural factors on the body. Details in the table.

Violation of the body's thermoregulation after intense physical activity is normal. A rise in temperature in the gym, immediately after training or the next day, indicates the presence of overload, which must be avoided in the future. If alarming symptoms appear regularly, reconsider your training program or seek help from a doctor.