ScienceInsights

Lower back pain keeping you up? Learn which sleep positions ease discomfort, plus tips on pillows, mattresses, and bedtime stretches that can help.

Learn to tell the difference between normal wound healing and infection, including the key signs that mean it's time to see a doctor.

Learn who qualifies for Ozempic, how to get a prescription, and what it costs with or without insurance.

Learn how to tell the difference between strep and a viral sore throat by what you can actually see, from white patches to swollen tonsils.

Knuckle cracking has long been blamed for arthritis, but science tells a different story. Here's what's actually happening in your joints.

Viral sore throats usually clear up in 3–10 days, while strep gets better faster with antibiotics. Here's what to expect and when to see a doctor.

Small, consistent changes to your diet, exercise, and habits can meaningfully lower cholesterol in 30 days. Here's what actually works.

Root canal costs vary by tooth type, location, and insurance. Here's a realistic look at what you'll pay and how to reduce the bill.

Learn how to get accurate blood pressure readings at home, from choosing the right monitor to avoiding common mistakes that skew your numbers.

Tap, bottled, filtered, or alkaline — here's what the science actually says about choosing water that's good for your health.