A doctor breaks down the causes of dry, brittle hair that's falling out, including poor hair care, stress, nutrient deficiencies, hormones, and medications.

It’s easy to point to heat styling and chemical processing as culprits behind damaged hair, but several less obvious factors can leave your locks brittle, frizzy, dry or prone to breaking and shedding ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Social media is debating whether “protein ...