Cochrane Review

Acupuncture beats sham by about a fifth of a standard deviation. So what is the sham actually subtracting?

Why a half-empty cardboard box can take you out when heavy lifting didn't. The hidden mechanics of back injury.

What defensive driving actually teaches — and why it's 70% about scanning, not skid-pad heroics.

Global smoking is down, but youth rates in Israel are rising. Here’s why.

The 2.2 billion figure is more complicated than it looks. Here's what the data actually says.

Fenugreek smells like maple syrup but tastes bitter. How one bean fooled the world for 8,000 years.

Water flossers beat string floss in clinical studies. Here’s what to buy and why.