ScienceInsights

Newborns typically need 8–12 feedings a day. Learn how to read hunger cues, handle cluster feeding, and know your baby is getting enough milk.

Some vitamins genuinely support liver health, while others can cause harm in high doses. Here's what the evidence actually shows.

Hot flashes aren't just a menopause symptom. Thyroid issues, medications, anxiety, and even certain foods can all trigger them in both women and men.

First periods are often lighter and shorter than expected. Learn what's normal for flow, duration, and timing when menstruation begins.

Many STIs cause no symptoms, so testing is the only way to know for sure. Learn what signs to watch for and when to get tested.

Practical ways to loosen chest congestion, from hydration and breathing techniques to expectorants and steam, plus when to see a doctor.

Most diarrhea clears up on its own in a few days, but here's how to tell when it's time to see a doctor and how to feel better faster.

Grapes offer more than sweetness — they support heart health, protect skin from UV damage, and may help keep your mind sharp as you age.

Some fruits pack surprisingly more fiber than others. Learn which ones to eat, why the skin matters, and how much fiber you actually need each day.

Cold sores are caused by a virus that never fully leaves, but the right treatments can shorten outbreaks and reduce how often they occur.