ScienceInsights

From medicated shampoos to ingredient swaps, here are the most effective ways to relieve an itchy scalp based on what's actually causing it.

The carnivore diet may offer short-term benefits, but nutrient gaps, gut changes, and heart health risks raise real questions about going all-meat long-term.

Antiviral meds, condoms, and managing triggers can meaningfully reduce herpes outbreaks and lower the risk of passing the virus to a partner.

Learn how to correctly perform Murphy's Sign, what a positive result means, and how reliable this bedside test is for spotting gallbladder inflammation.

Benzodiazepines are Schedule IV controlled substances in the U.S. Here's what that means for your prescription, travel plans, and more.

Tylenol and Advil aren't really stronger or weaker than each other—they just work differently. Learn which one is better suited for your situation.

STIs spread through fluids, skin contact, blood, and more — including from people with no symptoms. Here's what you need to know.

Beans, dairy, and cruciferous veggies are common culprits, but why do some people get more gas than others? Here's what the science says.

Dementia from the inside: what it feels like to lose words, sense of time, and awareness — told from the perspective of those living with it.

Water retention isn't always a bad thing. Learn when it's helping your body and when it might signal something worth checking out.