Back breaker: You're a screen queen.
Nine hours — that's how long the average person spends hunched over or slouched in front of a screen each day. A Temple University study suggested that increased texting on our latest tech obsessions — smartphones and tablets — is creating more aches and pains in our shoulders, necks, and backs. "It's important to take breaks, do neck exercises, and occasionally hold your phone or tablet out in front of you," says Deborah Venesy, MD, a doctor of physical medicine and rehabilitation at the Cleveland Clinic Center for Spine Health. For a simple neck reliever, hold your head for 10 seconds in each of the following positions: forward, back, left, and right. Repeat this five times a day.
Sitting all day is hazardous, too. "It puts more pressure on disks and vertebrae than standing or walking," Dr. Katz says. Alleviate the tension with an office makeover. Start with a lumbar-support cushion, such as the Original McKenzie SlimLine ($19, isokineticsinc.com). Then adjust your seat so your computer monitor is at eye level, your arms and knees are bent at a 90-degree angle, and your feet rest on the floor. Finally, go to workrave.org to download a free program that flashes screen reminders to take computer breaks as often as you schedule them.
Back breaker: You ignore your core.
When you hear the word core, you picture six-pack abs. But your core is composed of much more: Back, side, pelvic, and buttock muscles all work together, along with your abs, to allow you to bend, twist, rotate, and stand upright. "Your core is like a crane that supports all of your movements," Dr. Moyad says. Unlike crunches, which focus solely on abdominal muscles, core exercises — lunges, squats, planks, and others — strengthen several spine-supporting muscle groups at once.