ScienceInsights

Cold sore itching is an early sign of the virus activating. Learn what causes it, when it happens, and how to find relief.

Lasting longer in bed comes down to fitness, breathing, and a few learned techniques. Here's what actually helps and how to put it into practice.

Learn how to treat a minor burn at home, what to avoid putting on it, and when it's time to seek medical care.

From early blood tests to ultrasounds, here's what each method can tell you about your baby's sex and when it becomes reliable.

Antiviral medications like acyclovir can treat herpes outbreaks and reduce recurrences. Learn which options work, how they're used, and what to expect.

From daily brushing habits to deep cleanings and surgery, here's what treating gum disease actually looks like and how to keep it from coming back.

Feeling unusually irritable? Learn how to tell whether mood changes are linked to PMS or early pregnancy, and what can help you feel more like yourself.

Simple, practical ways to ease your body into daylight saving time, from shifting your sleep schedule early to managing light and caffeine.

Acetaminophen is safe for most people short-term, but daily dose limits, alcohol use, and liver health all affect how long you can take it without risk.

Bloating has many causes beyond just gassy foods — from lactose intolerance to hormones to slow digestion. Here's how to find what's actually triggering yours.