ScienceInsights

Learn what a healthy resting heart rate looks like, what affects it, and which signs suggest it's time to talk to a doctor.

Most styes are harmless and heal on their own, but some signs mean it's time to see a doctor. Here's what to watch for.

Learn to recognize toxic behavior in relationships, understand its emotional impact, and find out what change and leaving safely can look like.

BBQ can raise cancer risk, but simple changes like marinades and better technique make grilling significantly safer for you.

Warm compresses can help, but some common remedies may make cysts worse. Learn what actually works and when to see a doctor.

AEDs and first aid aren't the same thing. Learn what an AED does, how it improves survival, and how it fits into emergency response.

Poor leg circulation can stem from artery disease, vein issues, or lifestyle habits. Learn what's behind your symptoms and how to improve blood flow.

Everything you need to know about getting a sleep study, from talking to your doctor to understanding your results and navigating insurance costs.

Addiction changes brain structure and function in measurable ways, which is why it's treated as a medical condition rather than a personal failing.

Dandruff is treatable. Learn which medicated shampoos actually work, how to use them correctly, and what habits help keep flakes from coming back.