This makes your kidneys have to work too hard, decreases the amount of saliva you make and reduces the tears moistening your eyes. It can make your skin feel flushed or less elastic. You may get a headache or feel fatigued or dizzy. It can increase your pulse. Heat exhaustion and heat stroke may result.
Constipation is a problem for some.
Liquids make bowel movements soft and bulky, so they pass more easily. If you have excessive thirst or very frequent urination, confide in your health care professional. You may have a condition that needs medical attention. Keep a beverage close by so you can sip on it regularly. Watch for these Signs Heat exhaustion is the body's response to excessive loss of water and salt contained in sweat.