The vast majority of people will have their lives affected by depression, either personally or through friends or family members. NHS figures show that one in 10 people will suffer from depression at some stage.

Depression isn’t just feeling unhappy for a few days, it’s a chronic, persistent feeling of unhappiness or numbness than can last for weeks, months, years or even a whole lifetime.

There are many forms that depression can take, all of which have different symptoms and treatments.

For details on the symptoms and treatments for depression, see below.