Depression is a mood disorder that leads to feeling of sadness and loss of interest. While sadness is a normal human feeling and we all do feel sad, moody or low often, in depression, some people feel these feelings intensely, for longer duration of time may be for weeks, months or even longer and sometimes with no reason. Episode of depression persist for longer duration and can affect how one feels, think and behave and can lead to a variety of emotional and physical problems. Someone in depression may have trouble doing normal day-to-day activities, and sometimes may feel as if life isn't worth living. More than episodes of sadness, depression isn’t a condition that can fade away on its own. Depression may require long-term treatment. Most people suffering from depression feel better with medication, psychotherapy or both. Symptoms: Depression occurs once during life and people suffer from multiple episodes. During these episodes, symptoms occur most of the day, almost every day and includes:
- Extreme sadness, emptiness or hopelessness and tearfulness
- Emotional outbursts, rage, irritability or frustration
- Deranged sleeping patterns-insomnia or sleeping too much
- Lack of energy and enthusiasm, general feeling of tiredness
- Loss of interest or pleasure normal activities such as hobbies or sports
- Loss of appetite and weight loss or increased food cravings and weight gain
- Restlessness, anxiety or agitation
- Low voice, slowed thinking speaking and body movements
- Low self-esteem, feelings of worthlessness, self-blame
- Trouble thought-process, overthinking
- Suicidal thoughts, suicide attempts or suicide
- Unexplained physical disturbances, such as headaches or back pain
- Major depression, if left untreated, lasts for about six months.
- Some people experience just one episode of depression in their lifetime, but in case of major depression, these episodes would be recurring.
- People suffering from atypical depression may remain depressed, however, they experience a temporary mood lift in response to positive events, such as after receiving good news or while out with friends.
- Other symptoms of atypical depression are increased appetite and weight gain, excessive sleeping, a heavy feeling in the arms and legs, and sensitivity to rejection.

