Major depressive disorder

This is a form of depression where the person experiences symptoms for over two weeks which affects their eating ability, working ability, sleep and function and the symptoms for major depressive disorder are as follow:

• Persistent depressive disorder
• Perinatal depression
• Premenstrual dysphoric disorder (PMDD)
• Depression with psychotic features
• Seasonal affective disorder (SAD)
•  Bipolar disorder

The risk factors for depression include:

• Biochemistry
• Genetic factors
• Personal medical history
• Gender
• Life events
• Stress
• Isolation
• Medical conditions
• Medication
• Personality