Depresion, and many other mental illnesses, is often a CHEMICAL disorder
Ah, well yes, BUT: Isn't it possible for the brain to make its own chemicals? Think about it, brisk excercise stimulates the endorphins in our brains which promotes a feeling of well being. Sitting still and just listening without partaking stops the brain from producing any happy mood chemicals. Too much of that sort of thing - meetings, TV and simply not communicating animatedly will not stimulate brain chemicals at all, resulting in depression.
Crippling depression is often just the result of too much negativity, the "Happy batteries" get drained. What you need is a long "trickle charge" of positivism!
Englishman
Nostalgia isn't what it used to be....