Even the case is an amalgam of these factors. Depression may be linked to a series of physical causes, such as a meager diet, lack of exercise or some diseases such as influenza. Even frequent use of energy drinks can lead to depression because of the destruction of chemical reactions in the brain.
Physical symptoms may include: fatigue, loss of energy, trouble sleeping, loss of appetite or exaggeration with eating, loss of sex drive or sexual function problems, alcohol or smoking more than usual, physical pain or various disorders of body.
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