ScienceInsights

Short menstrual cycles can be normal or a sign something's off. Learn what counts as short, why cycles vary, and when to talk to a doctor.

No cure exists for RSV, but treatments ease symptoms and new preventive options now protect infants and older adults most at risk.

A deviated septum can cause more than a stuffy nose. Learn how it affects sleep, sinuses, and breathing—and when treatment may help.

Simple, practical habits like warming up, building strength, and sleeping well can significantly lower your risk of sprains and strains.

Your lungs can heal after smoking, but detox products won't help. Here's what actually supports lung recovery, from breathing exercises to everyday habits.

From kitchen remedies to lifestyle tweaks, here's what actually helps with heartburn—and what's probably just hype.

Tight shins after a run? Learn which stretches actually help, when to do them, and how to tell if you need more than just stretching.

Liquid iron supplements absorb well but come with trade-offs. Learn the right dosage, how to reduce side effects, and tips to prevent tooth staining.

Ensure Plus is a calorie-dense supplement that helps certain people meet nutritional needs, but it's not right for everyone. Here's who it's actually meant for.

Research-backed facts on average penis size, what influences it, how it changes over time, and why most men tend to underestimate the norm.