More and more of our children are being diagnosed as autistic, though experts cannot agree on why it is happening. Are we getting better at spotting the signs earlier - or on the brink of an epidemic?
The islanders of Okinawa live longer than anyone else on the planet. And they stay fit, active and happy long into old age. Now a new book reveals their secrets. Emily Wilson reports.
Spiders, snakes, premature burial - Harriet Stewart faces our worst fears with Phobias: Fighting the Fear by Helen Saul and Buried Alive: The Terrifying History of Our Most Primal Fear by Jan Bondeson