Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

Anyone who has ever had a tooth crack or break knows the sinking feeling that follows because it almost certainly means an urgent trip to the dentist. While the enamel on your teeth is the hardest ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. "Enamel is the hardest tissue in the body, but unlike bone or skin, it ...

Toothpaste made from your own hair may offer a sustainable and clinically effective way to protect and repair damaged teeth. In a new study, scientists discovered that keratin, a protein found in hair ...