being positive , psychologically

what do you feel about creating a mind set in your own community by way of changing the way people behave, think and even feel.
would it be possible to become a bit more trusting, less nagging, more optamistic and in general positive?

here, i thought i should share a link to a US based research in the field of Social Sciences & a major, now.

http://www.ppc.sas.upenn.edu/pppress.htm

on a side note, reflect as to why is happiness and the resilience that drives to it, is crucial to survive, & if we know it to be important, then why we do not work on keeping it on & about ourselves?

the link has further links on it, that pertain to the coverage in news and research articles, to the same topic.

enjoy.
dushi