New research shows that married fathers over the age of 25 report feeling significantly more happiness than their childless peers. Here's an interesting article by Dr. Christine Carter, sociologist and happiness expert, describing this research and discussing how we can all benefit from the joyful dads around us.
http://greatergood.berkeley.edu/raising_happiness/post/fathers_day_2012
http://greatergood.berkeley.edu/raising_happiness/post/fathers_day_2012