A: Start in a lunge—left leg back, right leg bent with knee over your toe—with weights at your sides.
B: Push off with your left toe and raise your left leg until your thigh is parallel with the floor while curling the weights to your shoulders. Return to starting position. Repeat 15 times, then switch legs and do 15 more for one set.
To achieve true fitness, you need a strategy that includes cardio (aerobic) exercise, strength training, and "functional fitness" exercises. Here's how much of each type to aim for, depending on your goal.
Our December issue features Oprah's Favorite Things—as well as your chance to win them all! You'll also find our easy holiday declutter plan, Dr. Oz's guide to sleeping better (starting tonight) and the ultimate holiday menu.