Visualisation of heap memory is a good tonic in my case. when I feel such kind of depression I try to memorize the best sweet moments of past. I just want to remember the faces I love most like my mother wife daughter. sometimes I try to watch the movies of my childhood memories which encourages me to leave in this world in a soft mind and motivate me to go to work and in that way I can be out of depression. thank you very much for coming up with this nice topic which we normally face in our day to day life now a days in this competitive world.