It's a rumour that has circulated in school canteens around the world for years. The so-called '5-second rule' is the idea that it's safe to eat food dropped on the floor if picked up within five ...

Many people follow the “five-second rule,” but science shows the truth is more about safety than timing. Studies have found that food picks up germs as soon as it hits the floor, regardless of how ...

“I thought it would be fun for people to know all the little nastiness that we don’t think about every day,” Chicago microbiologist Nicholas Aicher said Getty;howdirtyis/TikTok Nicholas Aicher — ...

Forbes contributors publish independent expert analyses and insights. I write about relationships, personality, and everyday psychology. New psychological research reveals that it only takes five ...