You can die from pooping too hard. Source

This totally happens. And it ain’t pretty. Bearing down on the toilet can overstimulate your vagus nerve and cause you to faint. It’s called vasovagal syncope, and it drops your heart rate and blood pressure. Typically, blood flow would return to your brain and you’d regain consciousness. But…If you happen to also have cardiovascular or circulatory problems… it might not. That is why people sometimes die on the toilet.

man im not even in medicine but this is so incredibly wrong and misleading that even i can tell its bs. first of all, its WAY overexplaining “vasovagal syncopes” (literally just the term for when you faint. happens for a million reasons; getting a tattoo, being hungry/dehydrated, overexerting yourself, exhaustion, acute stress…) and the only time most people would DIE from fainting is if they passed out while rock climbing and fell off a cliff. the only scenario involved in shitting & blood pressure that could lead to death, as far as i know, is a heart attack in someone with a history of cardiovascular problems. so like, sure technically the exertion of shitting could kill someone with such extensive heart problems, but so could LITERALLY anything else at that point. if you can lift a box without having a myocardial infarction youre not gonna die while taking a shit.