Why when I exercise, I don’t sweat


In general, when exercising, it is common to sweat. In addition, it is often understood that the presence of sweat is a sign that the physical effort that was due has been worked and made. However, this doesn't always have to be the case, as exercise and sweat don't always go hand in hand. If it has ever happened to you, surely you have wondered why when I exercise, I do not sweat? But don't worry, because it's more common than you tend to think. In fact, there are people who never sweat when they exercise. This is due to several factors, although there may also be some health problem. And it is that it does not always influence the intensity or the type of sport or sports practice that is carried out. From, we are going to tell you the main causes of exercising without sweating. Sweat little (or nothing) when exercising.

Why when I exercise I don't sweat

When you do physical exercise and do not sweat, there are several causes or reasons that explain this situation. And there are several factors that influence sports practice and that condition the level of sweating:

  • Fitness: since you do sports do you sweat more? This has a very simple explanation. A person who is in good physical condition and who habitually exercises tends to sweat more than another who exercises infrequently or is the first time he performs a workout. This is because, with physical activity, body temperature increases and, therefore, the glands begin to secrete sweat, which produces the evaporation of moisture from the skin so that it can be cooled. But, the better physical shape and greater the activity, the body has a much more efficient heat regulation system of the organism itself, which makes it cool down earlier and, therefore, can be trained with more intensity.
  • Sex: being a man or a woman influences when it comes to sweating. In fact, it is proven that men tend to sweat more than women.
  • Age: Like sex, age is another factor that influences sweat and sport. Young people sweat more than older people, which increases during exercise.
  • Weight: People who are heavier or overweight tend to sweat more because their body, having more thickness, generates more heat.
  • Temperature and humidity: the conditions in which physical exercise is practiced also influence the level of sweating of people. With higher temperatures and more humidity, you sweat a lot more.

If you also don't sweat and turn red, you may also be interested in how to know if exercise is working.

I am very hot and do not sweat: anhidrosis or absence of sweat

Lately you don't sweat? Regardless of the generic causes that we have discussed above, there are people who do not sweat when exercising. This has a medical name. It is anhidrosis, which is defined as an abnormal disorder or lack of sweating in response to heat, that can lead to health problems because the body overheats. This could trigger heat stroke, and it is possible to die.

This disorder has its origin in various causes, most of them being related to some diseases:

  • Sympathetic nervous system: which is responsible for controlling sweating, but can fail in its functioning favoring anhidrosis.
  • Neurological diseases: such as Guillain-Barre syndrome or GBS, which occurs when the immune system mistakenly attacks the nervous system, although nerve damage can also be caused by diabetes or alcoholism.
  • Congenital diseases: such as dysplasia’s that affect the development of sweat glands.
  • Hereditary pathologies that affect metabolism: as is the case with Fabry disease, which is a genetic disorder caused by a mutation of a gene.
  • Skin damage: such as those caused by burns or radiation therapy or other diseases such as psoriasis that clog skin pores.

When the lack of sweating is caused by one of these problems, there is no choice but to follow the medical treatment prescribed by the specialist, in addition to following care on a day-to-day basis to prevent the body temperature from rising excessively and an unwanted heat stroke from occurring.

Sweat in sport and hydration

Hydration, or rather dehydration, also influences the level of sweating when exercising. And there is a direct relationship between the two. In fact, the less presence of water in the body, the less you sweat.

Dehydration can be of several types:

  • Slight
  • Moderate
  • Grave

The latter is especially important because it can endanger life. And, when you exercise (regardless of whether you sweat or not), it is key to drink water and replenish the level of fluids that is lost.

As a guideline, it is estimated that a person who performs an hour of exercise, should drink at least one liter of water to recover.

With these explanations, from we hope we have answered your question of why when I exercise, I do not sweat? Always remember to consult with a doctor if it happens to you so that he can determine whether or not it is a consequence of an illness and indicate the most appropriate treatment or guidelines for your case.


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