- Depression frequently causes extreme changes in sleep patterns. An inability to sleep or the need for an overabundance of sleep can both be detrimental signs of depression..
- Depression can manifest itself through changes in diet including both under and overeating. Diet changes during depressive episodes often coincide with an unhealthy level of weight gain or loss.
- Otherwise unexplained pain can result from depression. This symptom can include either the creation of new pains or the extension and intensification of past injuries.
- Depression can have negative effects on the digestive tract, resulting in nausea, constipation and diarrhea.
- Some cultures recognize depression almost entirely through physical rather than psychological symptoms. Young children, who may be unable to grasp the mental concepts of depression, also show depression through physical symptoms.












