Bone is living, growing tissue and continuous change occurs in every bone throughout life. With osteoporosis, there is a decrease in both the quantity and quality of bone causing the bone to weaken.
Fractures result from trauma, such as falls, and from stresses incurred during normal activities.
For those with weakened bones, the weight of the head and upper torso combines with poor postural habits causes the bones of the back to become compressed. Although bone loss is an inevitable part of aging, the amount of bone loss varies greatly with individuals. A sedentary life style can increase the chance of osteoporosis. Physical activity plays a role in the reduction of bone loss. Scientific evidence suggests that bone adapts its shape and strength to the stresses imposed on it.