Around 450 million people around the world are estimated to have some form of mental health disorder, and one in four people will suffer from mental illness at some time in their life.

Depression is a common mental health disorder and it is estimated that 154 million people globally suffer from depression.

A 2013 study by the University of Queensland found that the Middle East, North Africa, Eastern Europe and the Caribbean are the saddest places in the world, with 5% of the population being diagnosed.

Depression has many possible causes, including a traumatic life event such as bereavement, relationship breakdown, financial difficulties or bullying. In other situations, the person may have an inherent tendency towards depression, and such genetic factors can be key in the case of bipolar disorder.

A person suffering from depression will experience intense emotions of anxiety, hopelessness, negativity and helplessness, and the feelings stay with them instead of going away.

In the below infographic, we provide detailed information about the causes of depression, the main types of depression and the symptoms people experience as well as providing some helpful tips for coping with depression.

Written by Aris Grigoriou, Study Medicine Europe