Why do people get diarrhea when walking or running?

Answer 1

The intestines work normally by pulling fluid from the body to keep the intestinal content "mushy" but within a balance. The extremes are: too much liquid (diarrhea), or too hard (causing constipation).

But the intestines and stomach also have a normal balance of flora -- normal bacteria and yeast -- and normal acids in the stomach to promote digestion. When the gallbladder is not functioning correctly, it produces less bile salts so digestion is poor, and there can be symptoms of gallbladder disease such as pain in the side or back, burping, flatulence (gas).

When the normal balance of flora is disrupted, for any reason, that can cause diarrhea. Antibiotics can disrupt the normal flora.

Some foods are very harsh on the intestinal wall and can irritate the tissues. The intestines cope by pulling in more fluid from the body, in order to "bathe" the intestinal wall and rid itself of the irritant.

Laxatives work along the same premise-- they pull in more fluid to the intestines. Overuse of laxatives can cause bouts of profuse diarrhea.

When a person has diarrhea it may help to use the BRAT diet, which is used for babies who have the runs. BRAT stands for Banana, White Rice (with nothing added_, Applesauce, and Plain Toast (no butter, no jam etc). BRAT helps to rest the intestines with foods that promote normal balance of fluid, flora, and help decrease the stomach's acidity. If you use a BRAT diet for several days, your diarrhea should slow down and become formed stool again. It's important to slowly add in other non-irritating foods. Avoid laxatives; speak to your doctor if you are taking an antibiotic.

Answer 2

because you loosen up your digestive system when you excercise.