An ancient memory training technique is being used to help people with depression. When someone is depressed they can find it hard to remember happier times. Dr Tim Dalgleish's study used the method of loci, associating familiar places with positive memories.

What is the best way to treat mental health problems around the world?

New research by Helen Weng from the University of Wisconcin Madison has shown that a short course in meditation can increase altruism.