Calcium is a very important nutrient for the health, density and strength of bones. Decrease of bone density can lead to fragile bones called osteoporosis and ‘atraumatic’ fractures – fractures that occur with little or no trauma. Sometimes a small push with a foot to shut an open drawer, bending, lifting, falling from standing position or a big sneeze or a sharp turn of the wrist can cause the fragile bone to fracture. The most common fractures occur in the backbone. You would probably have seen some older women with a bent, humped back and a stooped posture.