Osteoporosis is a condition characterized by a severe decline in bone mineral density.
Osteoporosis affects nearly 1 in 4 adult women over age 65, and 1 in 20 men over age 65 (source). If left untreated, people with osteoporosis can suffer life-threatening spine or hip fractures. For example, the average life expectancy after a senior citizen suffers a hip fracture is 12 months, whether they have surgery to repair/replace the hip or not. Spine and hip fractures can be very painful and debilitating.