There are millions of sweat glands in the body situated in the deeper layer of skin. These sweat glands produce sweat on the skin surface to keep our body cool. Besides, sweat also expels body wastes. Sweat is mainly composed of water and to a lesser extent salts. Almost 99% of sweat is water and 1% is salt. It contains salts such as sodium, calcium and potassium in minute amount and a trace of urea.
Generally you sweat in hot climate or while you exercise or if there is an emotional stress or if you are having fever, or if you eat hot and spicy food.However, there are people who have lack of sweating in these situations which may lead to overheating and in some cases a dangerous consequence. Lack of sweat on body surface can be partial or it can be complete. Let us know the reasons for lack of sweating.
What Causes Lack Of Sweating?
Sweating is a normal physiological process in the body to maintain the core body temperature. It evaporates on the surface of skin and thus keeps the body cool. Even though women have more sweat glands as compared to men, they sweat more than women.Many people may have tendency to perspire less than others. It may be a normal for them. But if you do not sweat when there is extreme heat or after doing strenuous exercise, it is something abnormal and you should talk to your doctor. Here are few important reasons;
- If you are not drinking enough water, you are naturally going to perspire less. Also you will have less urine output.
- If your body is dehydrated as a result of diarrhea and vomiting, or for any other reason, you are going to sweat less. This is because there less fluid left in the body.
- In burn injury, the sweat glands along with skin are damaged. Once the sweat glands are damaged, they will not be able to produce sweat. In extensive burns there may be complete stoppage of sweating.
- Exposure to extreme heat or doing strenuous exercise without drinking water or fluids can result in lack of sweating.
- Certain systemic medical diseases and skin diseases can also cause less sweating. Skin diseases such as atopic dermatitis, leprosy can affect the sweat glands, which may result in less sweating.
- Hypothyroidism, congenital conditions, GB syndrome are few other medical cause for lack of sweating.
- There are many drugs which are also responsible for lack of perspiration.
What To Do When There Is Lack Of Sweating?
If you know you are sweating less for the same physical work that you used to do previously, see if you have reduced your water intake. If it is so, increase your intake of water and that will precipitate in excess of sweating.
Same is the case when you are dehydrated after diarrhea.
However, if you sweat less for any other reason or a medical cause, you should be careful and avoid going out in extreme hot climatic conditions. This is because lack of sweating may lead to increase in the body temperature. You may be at risk of suffering from heatstroke and hyperpyrexia.
Avoid strenuous exercise and if you feel overheated and stay in cool room. You can also take cool shower bath. Dip a towel in cold water and sponge it all over your body, this will reduce overheating of the body.
Cold water sponging is also important when you are suffering from high fever and have lack of sweat.