“Straining actually onerous throughout a bowel motion can activate the vagus [nerve],” says Ellen M. Stein, MD, affiliate professor of medication within the Division of Gastroenterology and Hepatology at Rutgers Medical Faculty.
“In case you’re straining or pushing onerous, your abdomen muscular tissues are contracting and that may lower blood circulate into the vagus nerve,” says Rudolph Bedford, MD, a gastroenterologist at Windfall Saint John’s Well being Middle in Santa Monica, California. “That may make you’re feeling dizzy if you rise up after a bowel motion, or drained. Some individuals will even faint or lose consciousness in the event that they’re straining sufficient.”
Holding your breath if you push to poop may trigger you to really feel weak afterward, says Stein.
