Sitting Is The Most Dangerous Thing You'll Do All Day.
Scientists at the Pennington Biomedical Research Center in Louisiana analyzed the lifestyles of more than 17,000 men and women over about 13 years, and found that people who sit for most of the day are 54 percent more likely to die of heart attacks.
Still sitting? Then you should know that your office chair also:
1. Screws up your posture. The fascia, the tissue that connects individual muscles into a full-body network, begins to set when you stay in one position for too long, says Men’s Health advisor Bill Hartman, P.T., C.S.C.S., a physical therapist in Indianapolis. If you’re hunched over a keyboard all day, this eventually becomes your normal posture.
2. Makes you fatter. This happens for two reasons. First, you burn 60 more calories an hour when standing versus sitting. But more importantly, says Hartman, when you spend too much time sitting, your largest muscle group—the glutes (a.k.a. your butt)—become lazy and quit firing. This is called gluteal amnesia. And it means you burn fewer calories.
3. Causes lower back pain. Weak glutes push your pelvis forward, putting stress on the spine, says Hartman. Here’s the other unseemly thing that happens when your pelvis tilts forward: Your belly protrudes, making you look 5 months pregnant.
