What Happens in Your Body During a "Cleanse" or "Detox"

Juice cleanses, colon cleanses, fruit detoxes, sugar detoxes—we've all seen these things, but do they actually work? What are they supposed to do? Let's take a look at the science behind the fad. » 12/11/14 8:00am 12/11/14 8:00am

Today's sexy body hack: eat walnuts to boost sperm health

Two handfuls of walnuts. That's all it takes. Just two handfuls (around 75 grams/day), and your sperm quality will improve "in terms of concentration, vitality, movement, shape and chromosome abnormalities," according to a study recounted in the latest issue of the journal Biology of Reproduction. » 8/16/12 6:40am 8/16/12 6:40am

What causes brain freeze?

Pretty much everyone has experienced brain freeze (also known as ice cream headache) at one point or another. And while scientists have learned a fair bit about what might cause brain freeze, there's still much we don't understand about what gives rise to this painful phenomenon. » 6/25/12 5:00pm 6/25/12 5:00pm