Oh summer. How we love thee. With long sunny days, barbecues, beach and pool outings, and just a little R&R, how could this not be a favorite season to many? With all of the fun activities that summer ...

Most people train their core with good intentions but poor results. Endless crunches, rushed planks, and random workouts ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." That's why it pays to dedicate focused training time on your core. You can start with these ab exercises ...