The gap in our teeth

DD Guttenplan: It is shocking how much the state of someone's smile still reveals about their class

How bedbugs invaded New York

New York City is under attack from a mass infestation of bedbugs that is leaving a trail of itching, sleep deprivation and panic in its wake.

Yoga’s naked commercialism

Stewart J Lawrence: The nude trend is stirring debate about how far yoga, now a multibillion-dollar industry, has travelled from its spiritual roots

Sex in the US: the shocking truth

Melissa McEwan: The way a survey is reported, you'd think it's a surprise anyone's having any. This hypocritical puritanism poisons public discourse