5.Crack Your Knuckles
That satisfying pop comes from tiny bubbles bursting in the fluid around your joints. Or from ligaments snapping against bone. Despite what annoyed adults might have warned you, it doesn’t cause arthritis. Still, it might be smart to stop. One study showed that this habit may cause your hands to swell and weaken your grip.
6.Lug a Big Bag
Whether it’s a purse, backpack, or messenger bag, packing too much can cause neck and shoulder pain. Heavy weight on one shoulder throws off your balance and your walk. If you tend to carry things only on one side, the constant pull overstretches your muscles and tires out your joints. If you do that every day, your body’s going to let you know loud and clear.