Researchers even go so far to say that healthy behavior may be contagious, and that there is a need for investigation to see if there's a way to modify social norms as an intervention lever for promoting physical activity and healthy eating. This is one of the first studies to demonstrate the association of both social support and social norms with physical activity and eating behaviors.
Are your friends healthy? Tell us about it in the comments!
Photo courtesy of Gwennypics on Flickr.