This quick, four-move dumbbell workout targets your upper body and core. It's perfect for a mid-holiday energy boost.

A strong core is essential for balance, posture, injury prevention, and overall functional strength across all age groups. Five effective exercises—crunches, donkey kickbacks, jumping jacks, The ...

If you love your body, it will love you back—right? It makes perfect sense. After all, it's the only one you've got. Building and maintaining core strength is essential—especially as you age. Your ...