Genes could make people more sensitive to their environment.
This could be the key to getting treatment to more people in need.
The research has been described as a game-changer in understanding the condition.
Experts say if the depression is left untreated, it can heighten the risk of another stroke.
A major study has shown the real impact of depression on your overall physical health.
Study of young adults raises serious questions about the risks of becoming obsessed with platforms like Facebook and Snapchat.