Postnatal depression (PND), also called postpartum depression, is experienced by approximately 15%-25% of women after childbirth. Men can also experience this depression although much less frequently. ...

Seasonal affective disorder (SAD) is an episode of depression that occurs and tends to reoccur during a certain time of year, usually in winter. SAD entails serious mood changes and possible heightened anxiety. It is not a separate disorder to depression and is added as a description to the pattern of major depression or bipolar, otherwise known as a subtype. ...

Bipolar is an extremely serious mental health condition, previously called manic depression, and sometimes referred to as bipolar affective disorder. ...

Major depressive disorder or major depression, also called clinical depression or unipolar depression, is characterised by a combination of symptoms that interfere with a person’s ability to work, sleep, study, eat and enjoy once-pleasurable activities. ...

Melancholic depression is a hard and distressing type of depression, generally diagnosed amongst older people; it may have a unipolar or bipolar course. It is a relatively uncommon diagnosis. Major depression has five subtypes, called specifiers by the DSM. These are melancholic depression, atypical depression, catatonic depression, postpartum depression and seasonal affective disorder. It is important to a ...