Depression.
Depression is a common condition that according to the DSM iv can give rise to: 1. Poor appetite and weight loss or increased appetite and weight gain. 2. Insomnia or excessive sleeping habit.(hypersomnia) 3. Physical hyperactivity or inactivity. 4. Decreased interest or pleasure in usual activities or decrease in sexual drive. 5. Loss of energy. Fatigue. 6. Feeling worthless–guilty and ashamed of being a loser. 7. Diminished ability to think or concentrate. 8. Recurrent thoughts o