Oliver Sacks obituary

Neurologist and writer best known for his books The Man Who Mistook His Wife for a Hat and Awakenings

How hard work cures all illness

Dean Burnett: Iain Duncan Smith claimed that hard work helps treat illness. Scientifically speaking, he’s right. Sort of. Well, not quite.

Memory loss: what makes people forget who they are?

When amnesia strikes, people can forget everything about their life, including their name. But what causes memory loss? And what happens to people who lose themselves for an hour, a few months – or even for ever?