You may bristle at the thought, but our ancestors used frayed twigs to “brush” their teeth. Toothbrushes have evolved a lot since then, from a cattle bone handle and swine bristles to a hard plastic ...

We don’t always have the answers, but we have some people on speed dial who do — which is why we present to you our series FYI where we have experts explain if lip balm is actually bad, how often ...