This week news that men talk as much as women, cosmetics from jellyfish, songbirds "greatest-tits", a breathtaking asthma breakthrough and a gene-screen for bowel cancer. We also uncover the cause of contagious yawns, probe the brain basis of epilepsy and manic depression, and uncover a brain region responsible for out of body experiences. Plus, in Kitchen Science, Ben and Dave find out why the raisins always rise to the top of the cereal box.