It's harder to poop in space. Scientists may finally know why

Recent research has revealed that prolonged exposure to microgravity significantly impacts astronaut digestive health, specifically increasing the difficulty of bowel movements during space missions. Studies conducted by NASA scientists have identified changes in gut bacteria composition as a primary contributor to this issue. These alterations lead to reduced intestinal motility and altered stool consistency, creating challenges for waste elimination. Researchers are investigating potential countermeasures such as dietary modifications and probiotic supplementation to mitigate these effects. The findings underscore the importance of understanding and addressing gastrointestinal dysfunction within the unique environment of spaceflight.