BTW, this eerily resembles questions involving the myth that humans only use 10% of our mental capacity. Evolution is never so needlessly profligate (the human brain consist of only 2 percent of total body weight, yet demands 20 percent of our resting metabolic energy.)
Causes of osteoporosis. Osteoporosis causes bones to become less dense and more fragile. Some people are more at risk than others. Bones are at their thickest and strongest in your early adult life and their density increases until your late 20s. But you gradually start losing bone density from around the age of 35.en continue producing testosterone into old age, but the risk of osteoporosis is increased in men with low levels of testosterone. In around half of men, the exact cause of low testosterone levels is unknown, but known causes include: 1  the use of certain medications, such as oral glucocorticoids. 2  alcohol misuse.
Why does an osteoporosis bone fracture cause back pain? Back pain can be a sign that a compression fracture has occurred in the vertebrae - the bones that form your spine. Brittle, weak bones caused by osteoporosis are at the root of this problem. Compression fractures in the back are a major source of pain and disability for women, and some men, over 50 years old. Compression fractures in the back are also the most common type of fracture due to osteoporosis.