The urge to poop occurs when your rectum fills up, triggering receptors in the anus to signal the brain: go poop. The longer the stool sits in the rectum, the more water is absorbed from it, making it ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Bathroom design has come a long way, as has the technology involved. From showerheads ...