If you mean osteoporosis it's a condition of the bones usually affects older people after 60 ,but can effect younger people . You can buy quite cheaply tablets that help with this condition making the bones a bit stronger any chemist on the high street sells them
Osteoporosis is a medical condition characterized by weakened and brittle bones, increasing the risk of fractures. It is most common in older individuals, particularly post-menopausal women. Management includes lifestyle changes, medication, and sometimes physical therapy to improve bone strength and decrease the risk of fractures.