ScienceInsights

A bump on the roof of your mouth is usually harmless, but here's how to tell whether it's a torus, canker sore, or something worth checking out.

Most 6-year-olds weigh between 36 and 60 pounds, but percentiles tell a fuller story than the number on the scale.

Each month, only one egg is released but hundreds are lost. Learn how your egg supply changes over time and what doctors look for to assess it.

Learn how to take an accurate blood pressure reading at home, avoid common mistakes, and understand what your numbers actually mean.

Sperm can survive up to 5 days inside the body, but location, mucus, and lubricants all affect how long. Here's what that means for conception.

From potassium-rich foods to hibiscus tea, learn which everyday foods can help lower high blood pressure and how soon you might notice a difference.

Zyrtec typically stays in your system for about 2 days, but age and kidney health can change that. Here's what to know about its half-life and effects.

NyQuil's drowsiness can linger well past its cold symptom relief. Here's how long each ingredient stays active and when it's safe to drive.

Exercise, hydration, and smart eating can help your body clear excess sugar faster. Here's what actually works and what to skip.

Most 10-year-olds need 9 to 11 hours of sleep, but age, activity level, and early puberty can shift that range for your child.