Chronic stress shrinks key brain regions, but exercise, sleep, diet, and other habits can help rebuild them. Here's what the science says about recovery.
Thermoplastic elastomers combine the flexibility of rubber with the processability of plastic. Learn how they work, their main types, and where they're used.
Microneedling frequency depends on needle depth, skin concern, and whether you're treating at home or with a professional. Here's what the science suggests.
Buffalo gnat bites cut the skin rather than pierce it, making them extra painful. Learn how to treat the itch and swelling and when to seek medical care.
Hepatitis isn't usually inherited, but genetics can play a role in some cases. Learn which types have hereditary links and what that means for families.