After I thought about this, it really shouldn't come as a surprise.
Laziness isn't the most likely culprit in why people don't seek fitness activities. New research shows it is most likely rooted in peoples' DNA. In other words . . . you're either wired for exercise or you're not.
Check out this article from the Wall Street Journal that examines the research. Whether you're "wired" for fitness or now, I hope people realize the long-term benefits of fitness in their lifestyles!