I’m shy about pooping anywhere that is not my home ― so when I’m about to go on a trip, I think about how I’ll prep my bowels to open before my friends wake up. After my morning coffee, I’m usually ready to go. But if I don’t happen to have access to coffee that early in the morning, I’ve done this enough times to know that drinking a bottle of water does the trick too.

And after a couple of days, my body will be ready to go at 6 a.m. There have also been times when I was consistently not pooping in the morning because I was out with other people, and eventually, my body started to regularly signal me to go in the evening.

It seems like the human body can be trained to shift its poop timing. How does this happen? And is it OK for us to do it on purpose? Below, gut experts spill all. Why does my body give me the urge to poop at the same time every day? “Most people have bowel movements when they wake up in the morning,” said Dr.

Peyton Berookim, a gastroenterologist at the Gastroenterology Institute of Southern California . This is because your circadian rhythm, the body’s internal clock, can influence your insides, causing your large intestine to contract more in the morning after you wake. If you’re not a morning pooper, you may be wondering why your body goes like clockwork in the afternoon or evening.

“Your body is used to a routine,” Berookim explained. If you’re waking up at a certain time, eating meals at certain times, going to work at a cer.