Head of NHS England believes social media firms must take responsibility
A new study says women who wake up earlier are less likely to become depressed
Millions of British children breathing toxic air, Unicef warns
Science divided over whether probiotics can enhance mood
Stressed out when you conceived? You're having a girl, say researchers
NHS pay rise fuels discontent among civil servants
Restaurant racks up huge debt because diners ate so much food
World Health Organisation classifies it as a mental disorder
Science agrees that green tea helps to boost metabolism and weight loss
Jeremy Hunt signals support, whilst Theresa May disagrees
Is it true that more people than ever are feeling lonely?
Can a gin a day keep hay fever away?
Should we all be working out in the cold?