Sitting all day can cause chair-related ailments

Sitting puts nearly twice the stress on the spine as standing; slouching while you sit increases the pressure even more.

That's because hunching forward pushes the back into a convex or C shape. Try it. Now pull your shoulders back and together and put your hand on your lower back. That natural concave curve is what you want; slouching fatigues and overstretches the ligaments, causing back pain.

Movement is key because the disks in our vertebrae are important shock absorbers. When we're locked in one position, we're starving the disks of nutrients.

A significant portion of low back pain can be remedied by avoiding the two most common sitting mistakes: leaning forward and having the chair too low.

Change your position. It's the single best thing you can do. Stand up every 15 to 30 minutes and clasp your hands behind your back. Take a phone call standing instead of sitting or simply straighten up, contract your abs and lean back.