Some patients are misdiagnosed as suffering from depression because many of the symptoms are the same - poor sleep patterns, depressed feelings and pain all over the body.

VOA: special.2011.07.26

A Royal Society research team member, Jules Pretty, says the team took into account a number of changes that are expected in coming decades, such as climate change, massive rises in world population, and new consumption patterns.

VOA: standard.2009.10.21