The 2,000-year-old tools represent a crucial moment in Chinese medicine.

When you gotta go, you gotta go–even at 30,000 feet. CREDIT: Stuart Dee via Getty Images. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday ...

But what has been less clear, until recently, is the direct effect of tonsil and adenoid removal on easing, even eliminating, full-fledged ADHD, in children who have sleep problems.

There are many possible causes of ear pain, including infection, allergies, wax buildup, swimmer's ear, or a ruptured ear drum.