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I Feel Hot & Cold After Running

By Susan Diranian

Running causes you to exert more energy, which makes your body work hard to regulate your body temperature so that you don't overheat. After running, as you decrease the amount of energy spent and your heart rate and blood flow slows down, you may start to feel cold. While these feelings are normal, there are ways to help ease the transition from hot to cold.

Feel the Heat

Running, as well as any other cardio exercise that gets the heart pumping, causes your body to work hard in order to maintain an internal body temperature of 98.6 degrees Fahrenheit, or close to it. As a result, you breathe in more oxygen, your heart beats faster and your blood flows quicker in order to move warm blood away from internal organs. One way your body releases excess heat is through the skin, which may cause you to turn bright red or feel hot during and after running.

Feel the Cold

Sweat is another way your body handles excess heat. As your body temperature goes up, your brain sends signals to your sweat glands to release fluid immediately. Just like an air conditioning unit may become moist from condensation, your body secretes sweat to form on your skin. In the right conditions, the sweat will dry off and, therefore, help you cool off.

Exercise Conditions

In order to prevent drastic changes in your body temperature, it is important to exercise in a cool environment. Compared to a moist, humid environment, a cool location will help promote the cooling effect of sweat. If running outdoors, choose a time that avoids the heat of the day or prolonged exposure to direct sunlight. Wear light colored, loose fitting clothing made out of breathable materials, such as cotton, in order to promote air circulation and help keep you from overheating. After you exercise, change out of sweat-soaked clothing to prevent feeling cold after you run.

Excessive Sweating

If you experience excessive sweating after your run, or at inopportune and unpredictable moments throughout the day, you may suffer from hyperhidrosis, or excessive sweating. Excessive sweating may affect the armpits, hands and feet. Mostly considered a genetic condition, certain medical conditions, medications, as well as illicit drugs may cause excessive sweating. Speak with your doctor to determine whether your excessive sweating is something to worry about. She may prescribe certain medication, antiperspirant or perform a medical procedure such as Iontophoresis which will turn off the sweat gland.

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