Major depressive disorder – or short depression – is a mood disorder that causes a persistent feeling of sadness and loss of interest. It is a significant medical condition that can affect many areas of your life. It impacts mood and behavior as well as various physical functions, such as appetite and sleep. It is a very common psychiatric disorder: 5% of the population suffered from depression in the last year, whereas one out of 6 individuals will face depression during their lives.
You can find further information on symptoms of major depressive disorder, how it is diagnosed, and treatments from the UK support Depression Alliance.