Curls may be why humans have such big brains. A new study—involving a mannequin wearing wigs in a wind tunnel—reveals how. Just why humans have hair on their heads is a long-standing question that few ...

Curly hair may have been key to why human brains grew so big, scientists have found. A study published by Penn State University researchers analyzed how human hair texture can help regulate body ...

Scientists have long wondered why humans' scalps are covered in hair even though we are far less hairy elsewhere. A new study published this month in Proceedings of the National Academy of Sciences ...

According to a fascinating new study, curly locks are better than straight hair at keeping your scalp cool. Researchers shone bright lights on a manakin, named Newton, with three different wigs—one ...