ScienceInsights

From ice and heat to core exercises and sleep positions, here's what actually helps relieve back pain and when to see a doctor.

New to CPAP therapy? Learn how to set up your machine, choose a comfortable mask, stay compliant, and make the adjustment easier.

Viral pink eye clears up on its own — here's how to ease symptoms, speed recovery, and avoid spreading it to others.

Rectal bleeding has many possible causes, from hemorrhoids to medications. Learn what the blood color means and when to see a doctor.

Safe, gentle ways to relieve toddler constipation at home, from glycerin suppositories to warm baths, plus when to call a doctor.

Night hunger is often driven by light, timing, and habit—not real appetite. Here's how to address the root causes and eat less after dark.

Pregabalin and Lyrica are the same medication, just different names. Learn what it treats, how it works, and why the price gap between them can be significant.

Learn which vitamins your body actually needs each day, who's most at risk for deficiencies, and how to get the most from food and supplements.

Nicotine rewires your brain's reward system faster than most people realize. Here's the science behind why dependence develops and why quitting is so difficult.

Tinnitus has many causes, from inner ear damage and earwax to jaw issues and medications. Learn what's behind the ringing and when to see a doctor.