**Friday osteoporosis**, or spotty osteoporosis, most often occurs in older people, starting at 40 years of age. For women, this process begins and progresses more rapidly during menopause. Manifested by many small cracks. Bone tissue becomes less strong and fragile, and painful fractures appear from any mechanical impact. Due to thinning of the bone, the chest is deformed, the skull is deformed - so-called senile scoliosis or kyphosis occurs. Problems begin with teeth and gums, which can slip out of the jaw arch. The danger is that it often doesn't hurt. When women develop osteochondrosis of the cervical spine, osteoporosis of the pineal gland becomes quite dangerous in men. This is one of the most common causes of joint degeneration.