Depressive disorders can be characterized by sadness, loss of interest or pleasure, feelings of guilt or low self-worth, disturbed sleep or appetite, feelings of tiredness, and poor concentration. Depression is a frequent psychiatric disorder, with an approximate lifetime prevalence of 10% in the general population. Postpartum depression is defined as a depression affected the mother following childbirth typically arising from the combination of hormonal changes, psychological adjustment to motherhood, and fatigue, postnatal depression. Major depressive episodes may occur once or twice in a lifetime, or they may recur frequently and they may also take place spontaneously, during or after the death of a loved one, a romantic breakup, a medical illness, or other life event. A major depressive disorder include the following episodes of symptoms such as persistent sad mood, most of the day, nearly every day, loss of interest or pleasure in hobbies and activities, including sex, feelings of guilt, worthlessness, helplessness, lowered energy, fatigue, feeling “slowed down”, difficulty concentrating, remembering, making decisions, insomnia, early-morning awakening, or excessive sleeping, low appetite and weight loss or overeating and weight gain, thoughts of death or suicide, suicide attempts and restlessness or irritability.
