Osteoporosis is a common disorder in mature women and some men. You gradually lose bone density, it is usually caused by hormonal changes. It can be very painful and cause fractures and spinal deformity.
To protect yourself it is wise to quit smoking and keep your caffeine and alcohol content to a minimum. Try to include calcium and vitamin D into your diet. A healthy balanced diet with plenty of fresh fruit and vegetables are helpful.
Some medications can cause problems if taken in excess such as steroids. Talk to your medical professional if you are at risk.
Exercise such as weight bearing is vital for bone health. Jogging, walking, weight training and dancing all put weight on the bones than activities such as swimming. Exercise can help to improve your balance which helps prevent falls. Yoga is very good for this.