Think of it like a playground swing: if you push at the exact same rhythm that the swing naturally moves, the arc gets wider.

From handwashing being unnecessary to women's wombs moving around and causing hysteria, these beliefs might be shocking today-but they were once dogma.

Dec. 20, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend. When you purchase through links on our site, we may ...