Karolinska Institutet

Engineers have tried for decades to replace the gallbladder. Here's what they've built so far.

Why calling vitamin D a "vitamin" is a historical accident—and what sunlight does that supplements can't.

What the data actually says about global autism rates, diagnostic history, and why the numbers keep changing.

The pandemic "ended," but the virus remains. Herman and Corn break down the 2026 landscape of variants, policy shifts, and vaccine guidance.