"Practice heartfulness! Live a life that is full of the positive and wise qualities of the heart. Research out of The Institute of Heartmath shows that the heart radiates an electromagnetic field that is transmitted throughout and outside of the body. These findings suggest that intentionally generated positive emotions can change our inner information and coding, as well as affect each other's moods, attitudes and feelings - whether we are conscious of it or not...love is the strongest medicine."
~Project Happiness

Some more happiness facts for all you science people out there.

~Paint_splatt