Keeping your bones and joints healthy You are here:HomeNewsroomNews Did you know the adult human skeleton is usually made up of 206 bones? It is essential to look after them and keep these bones strong and healthy. The most common type of bone disease, osteoporosis, affects 1.2 million Australians. It makes their bones brittle, leading to a higher risk of breaks. Ahead of healthy bones action week starting on 17 August, A/Prof Brett Courtenay OAM, Orthopaedic Surgeon at St Vincent’s Clinic, shares information about bone health and osteoporosis.