I found the link to source what I mentioned in my earlier post....

I found the link to source what I mentioned in my earlier post.

This TED video "Positive Psychology" by Martin Seligman also provides excellent viewing.

Happiness is built by a different system in the brain compared to sadness. Being happy is not the same brain state as being simply 'not sad'.


http://www.ted.com/talks/lang/en/martin_seligman_on_the_state_of_psychology.html