ScienceInsights

Teething usually starts around 6 months and wraps up by age 3. Here's what to expect and how to help your child through it.

At 15 weeks pregnant, you're in your second trimester and about 3.5 months along. Here's what's happening with your baby and body right now.

Stop the Bleed teaches everyday people how to control life-threatening bleeding until help arrives. Here's what the training covers and who can benefit.

Due dates are estimates, not guarantees. Learn how LMP, IVF transfers, and ultrasound measurements each produce a date—and why they sometimes disagree.

Tension headache relief at home, from pain relievers and heat therapy to stretching, massage, and knowing when to see a doctor.

A clear look at ketamine's chemical makeup, how it's synthesized, what's in pharmaceutical formulas, and how street versions differ from medical-grade.

Blood in discharge can stem from ovulation, pregnancy, or infections. Learn what different causes look like and when it's worth seeing a doctor.

Learn how to find your true max heart rate using formulas, field tests, and lab methods — and why common estimates often miss the mark.

Men can get UTIs too. Learn what causes them, how they differ from prostatitis, and how they're treated before complications develop.

One swollen ankle often means something different than two. Learn the common causes, from sprains to DVT, and what to do about it.