Sweating (Normal Amounts): Causes, Adjustments & Complications
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Sweating (Normal Amounts): Causes, Adjustments, and Complications

Sweating

Highlights

  1. Sweating is a normal bodily function that helps regulate your body temperature.
  2. Sweating excessively or not sweating at all can both indicate possible medical issues.
  3. Lifestyle changes can minimize your sweating, lessen odor, and make you more comfortable.

Sweating is a bodily function that helps regulate your body temperature. Also called perspiration, sweating is the release of a salt-based fluid from your sweat glands.

Changes in your body temperature, the outside temperature, or your emotional state can cause sweating. The most common areas of sweating on the body include the:

  • armpits
  • face
  • palms of the hands
  • soles of the feet

Sweating in normal amounts is an essential bodily process. Not sweating enough and sweating too much can both cause problems. The absence of sweat can be dangerous because your risk of overheating increases. Excessive sweating may be more psychologically damaging than physically damaging.

How sweating works

Your body is equipped with an average of 3 million sweat glands. There are two types of sweat glands: eccrine sweat glands and apocrine sweat glands.

Eccrine sweat glands

The eccrine sweat glands are located all over your body and produce a lightweight, odorless sweat.

Apocrine sweat glands

The apocrine sweat glands are concentrated in the hair follicles of the following parts of your body:

  • scalp
  • armpits
  • groin

These glands release a heavier, fat-laden sweat that carries a distinct odor. The smell, referred to as body odor, occurs when apocrine sweat breaks down and mixes with the bacteria on your skin.

Your autonomic nervous system controls your sweating function. This is the part of your nervous system that functions on its own, without your conscious control. When the weather is hot or your body temperature rises due to exercise or fever, sweat is released through ducts in your skin. It moistens the surface of your body and cools you down as it evaporates.

Sweat is made mostly of water, but about 1 percent of sweat is a combination of salt and fat.

Causes of sweating

Sweating is normal and occurs regularly in your daily living. However, a variety of causes can stimulate increased sweating.

High temperature

Elevated body or environmental temperatures are the primary cause of increased sweating.

Emotions and stress

The following emotions and conditions can make you break out in a heavy sweat:

  • anger
  • fear
  • embarrassment
  • anxiety
  • emotional stress

Foods

Sweating may also be a response to the foods you eat. This type of perspiration is called gustatory sweating. It can be provoked by:

  • spicy foods
  • caffeinated drinks, including soda, coffee, and tea
  • alcoholic beverages

Medications and illness

Sweating may also be caused by medication use and certain illnesses, such as:

  • cancer
  • fever and fever-reducing drugs
  • infection
  • hypoglycemia (low blood sugar levels)
  • painkillers, including morphine
  • synthetic thyroid hormones
  • complex regional pain syndrome (a rare form of chronic pain that usually affects an arm or leg)

Menopause

The hormonal fluctuations associated with menopause can also trigger sweating. Menopausal women often experience night sweats and sweating during hot flashes.

Lifestyle adjustments for sweating

A normal amount of sweating generally doesn’t require medical treatment. You can take steps to make yourself more comfortable and minimize your sweating:

  • Wear several light layers of clothing that allow your skin to breathe.
  • Remove layers of clothing as you heat up.
  • Wash dried sweat off of your face and body for optimum comfort.
  • Change out of sweaty clothing to reduce the risk of bacterial or yeast infections.
  • Drink water or sports drinks to replace fluids and electrolytes lost through sweating.
  • Apply an underarm antiperspirant or deodorant to reduce odor and control sweating.
  • Remove foods from your diet that increase your sweating.

If illness or medications cause uncomfortable sweating, talk to your doctor about alternative treatments.

Complications of sweating

Sweating may indicate a medical problem if it occurs with other symptoms. Let your doctor know if you experience:

  • chest pain
  • dizziness
  • shortness of breath
  • continued perspiration for an extended period of time without cause

Losing weight from excessive sweating is not normal and should be checked by a doctor.

The following two conditions result from either excessive sweating or the absence of sweating. Consult your healthcare provider if you feel you sweat more than normal or do not sweat at all.

Hyperhidrosis

Hyperhidrosis is a condition of excessive sweating from the armpits, hands, and feet. This condition can be embarrassing and may prevent you from going about your daily routines.

Anhidrosis

This is the absence of sweat. Sweat is your body’s way of releasing excess heat. You can become dehydrated and have a higher-than-normal risk for heatstroke if you suffer from anhidrosis.

The takeaway

Sweating is a normal bodily function. Beginning at puberty, most people start to use antiperspirants to minimize sweating and odor. Sweating either too much or too little can indicate a medical problem. Sweating in conjunction with other symptoms may also indicate a health condition. Make lifestyle adjustments to accommodate your sweating. If this isn’t enough, consult your healthcare provider, especially if you feel you sweat too much or not at all.

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