ScienceInsights

Most people are contagious with COVID-19 for about 10 days, peaking early in infection. Learn when you're most likely to spread it and when it's safe to be around others.

From salt water gargles to honey and lozenges, here are the sore throat remedies that actually help — and when to see a doctor.

From prescription antivirals to OTC creams and patches, here's what actually works to shorten a cold sore and help prevent the next one.

Discover which everyday foods like coffee, berries, and leafy greens support liver health, and which ones are best kept off your plate.

Lower back pain in females can stem from hormonal shifts, endometriosis, pregnancy, and pelvic anatomy. Learn what's behind it and what actually helps.

Acne scar treatments range from lasers to subcision, but results depend on your scar type. Here's what dermatologists actually recommend.

From OTC pain relievers to cold compresses and prescriptions, here are practical ways to ease a migraine and reduce how often they happen.

Cephalexin 500 mg treats bacterial infections like strep throat and UTIs. Learn what it's used for, side effects, and who should use it with caution.

A few methods can genuinely influence your cycle, while many popular remedies fall short. Here's what the evidence actually says.

Evidence-based remedies that can actually shorten or ease a cold, from zinc lozenges to saline rinse, plus what to skip and when to see a doctor.