ScienceInsights

Oral herpes spreads through close contact, often without visible sores. Learn how HSV-1 is transmitted, who's most at risk, and how to reduce spreading it.

Blurry vision or glare bothering you? Learn the common signs of cataracts, how they're diagnosed, and what your options look like going forward.

Learn how to support a loved one with sex addiction, from starting the conversation to finding help, without losing sight of your own wellbeing.

Learn what counts as a low dose of propranolol, how it varies by condition, and what effects and side effects to expect at smaller amounts.

Knee swelling can stem from injuries, arthritis, gout, or infection. Learn what causes fluid buildup and what it might mean for your joint health.

Trapped gas can be uncomfortable, but simple remedies like walking, heat, and herbal options can bring quick relief. Learn what actually helps.

Razor burn and razor bumps look and feel different. Learn how to tell them apart, spot infection, and know when skin should heal on its own.

Black coffee may benefit most heart patients, but your genetics, blood pressure, and brew method all play a role in how safe it really is.

Learn how plaque forms in your arteries, what it's made of, and which risk factors make it more likely to cause a heart attack or stroke.

From minoxidil to nutrients, find out which hair growth supplements have real evidence behind them and which ones aren't worth your money.