One area of growth for the health club industry is gyms that cater to the over-50 population. National Public Radio’s Marketplace ran a rather funny story about the trend last night.

NetSweat.com comments: If you need a grin today, listen to the story. On a more serious note, catering to retirees is a trend that should gain momentum over the next several years. The fitness industry has yet to fully catch in to the demographic changes within the U.S. and baby boomers are going to dominate gym memberships within the next 10-20 years.