21. I've been disabled since birth by brittle bone disease. 22. It also has been shown to reduce the risk of heart disease and brittle bones . 23. Opponents across the country cite studies suggesting fluoride causes such ailments as brittle bones and cancer. 24. No, he didn't bother asking the doctors if he has congenitally brittle bones in his hands. 25. It's also a safety issue : An astronaut easily could stumble and break a space-brittle bone . 26. Lack of calcium can lead to osteoporosis, a condition that results in weakened and brittle bones . 27. The cancer-proof mice lost weight and muscle, developed hunched backs and brittle bones , and lost vigor. 28. It also lowers the risk of heart disease and osteoporosis, the brittle bone disease, after menopause. 29. The vast majority of hip fractures are among women who have osteoporosis, the brittle bone disease. 30. Chapman was born in Leeds, with a congenital disability, Osteogenesis imperfecta ( brittle bone disease ).