Answer:
b. bone mass declines
Explanation:
Osteoporosis is a skeletal disease in which there is a <u>decrease in bone mass density</u>. Thus, the bones become more porous, the number and size of the cavities or cells that exist inside it increases, they are more fragile, the bumps resist worse and break more easily.
Inside the bone, many metabolic changes occur throughout life, alternating phases of destruction and bone formation. These phases are regulated by different hormones, physical activity, diet, toxic habits and vitamin D, among other factors.
Under normal conditions, a person reaches a maximum amount of bone mass at 30-35 years. From that moment on, there is a natural loss of bone mass.
Women have osteoporosis more frequently for several reasons: their bone mass peak is usually lower than that of men and with menopause bone loss (postmenopausal osteoporosis) is accelerated.
There are many other causes of osteoporosis: alcoholism, drugs (glucocorticoids, hormonal treatment used for the treatment of breast and prostate cancer), rheumatic, endocrine, liver and kidney failure.