To weaken or to injure?

Ok (haha) I am not sure why you would want to weaken your eyesight because in my opinion your eyes is something very special and when you cant see its really fusterating. I know because i wear...

Yes. You can injure your gallbladder. A sharp blow can injure it.

There are many ways to hurt your back. For those over the age of 50, bending over the wrong way or too often is especially dangerous because it stresses the bones of the back and spine.

Muscles are made of meat. Meat's kinda like rubber. Ever pull on a big thick rubber band for a long time until it stopped cinching back to the smaller size? Well, it's just like that. The muscles are...

It means that you are injured or hurt on your body(cuts, burns,ect) it doesn't mean sickness.