Neck stretch: Drop your head toward your right shoulder, hold for a few seconds, then bring your head back to center. Repeat on the left side. Repeat 5 times on each side. Knee hugs: Lift right leg up, bending at the knee, then grab knee with your arms and hug it to your chest. Hold for 10 seconds, release, then repeat with your left leg. Repeat 5 times on each side. Spine twist: While sitting in your chair, place your right arm behind your right hip. Twist to the right and hold for 10 seconds, then release. Repeat on your left side. Repeat 5 times on each side. Desk leg planks: Sit on the edge of your chair with knees bent and feet on the floor. Extend right leg out straight and parallel with the floor. Hold for 10 seconds, release, then repeat with left leg. Repeat 5 times on each side. Foot drill: While sitting in place at your desk, begin tapping your feet as fast as you can. Continue for 30 seconds. Repeat 5 times. Butt lifts: While sitting in your chair, place both hands on the arms of your chair and raise your butt off the seat. Lower back down slowly, without sitting. Repeat 15 times. One-minute aerobics: Quickly get your heart rate pumping by doing one of the following moves for a 60-second burst: * Jumping jacks * Mime jumping rope * Jog in place * Walking lunges