Health & Fitness Why do I get diarrhea when I run in hot weather? March 3, 2026 by Myaya | Leave a Comment Experiencing diarrhea when running in hot weather is a common issue, often referred to as "runner’s trots." It’s primarily caused by the body diverting blood flow away from the digestive system to cool the skin and muscles, leading to reduced nutrient absorption and increased bowel motility. Why Does Running in the Heat Cause Diarrhea? The […] Read more ยป