From hidden nutrient deficiencies to the "double-jointed" trap, discover why your skeletal system is sending distress signals and how to protect your mobility for the long haul.

Move over whey and soy—gym-goers are flocking to the dairy aisle for a whole-food protein source that offers 10 grams of protein per ounce with zero synthetic additives.

Target stubborn back fat with five standing moves that strengthen your back, improve posture, and support healthy weight after 50.