ScienceInsights

Taking Plan B during your period is usually unnecessary, but timing, cycle length, and body weight can all affect whether it matters in your situation.

High blood pressure quietly harms your heart, brain, kidneys, and more. Learn how hypertension affects your body and what warning signs to watch for.

Feeling dizzy from low blood pressure? Simple fixes like drinking water, adjusting salt intake, and compression stockings can help raise it quickly.

Most 6-month-olds sleep best with a 6–8 pm bedtime, but wake windows and nap schedules matter more than the clock.

Learn the behavioral and physical signs of ear infections in babies, how to tell them apart from teething, and what to expect from diagnosis and treatment.

Narcissists and sociopaths share some traits but differ in key ways. Learn what sets them apart in empathy, motivation, and behavior.

At 9 months, most babies need 24–32 oz of formula daily, but solid foods are starting to shift that balance. Here's how to know your baby is getting enough.

Afrin works fast, but using it beyond 3 days can backfire. Here's the safe dosage, why the limit exists, and what to do if you've already overused it.

Indomethacin clears your system in about a day, but factors like age and liver health can extend that. Here's what the half-life actually means for you.

Most colds clear up in 7–10 days. Learn what to expect each day, why some linger, and when to see a doctor.