What decreases the risk of osteoporosis?
a. adequate calcium intake
b. regular exercise
c. estrogen-replacement therapy
d. all of the answers are correct

d. All of the answers are correct

Explanation:

Osteoporosis is one of the diseases that are increasing its incidence among the world population due to the generalization of sedentary lifestyle habits, increased consumption of tobacco, alcohol and caffeine, and poor diet. Postmenopausal women are the population group with the highest risk of bone problems (four times more than men) by suffering a decrease in the number of estrogens and other hormonal deficiencies that cause irregular calcium absorption. One in two of these women will suffer at least some bone fracture, usually of a hip, according to the data from the Ostheoporosis study: a major public health problem. To avoid decreasing bone density, in addition to maintaining healthy lifestyle habits, it is most appropriate to maintain a good diet.

Calcium: dairy and cereals. The essential foods that provide the most nutrients to strengthen bones are those rich in calcium, vitamin D, phosphorus and magnesium. To ensure calcium intake it is necessary to drink at least one glass of milk a day

Osteoporosis is one of the leading causes of disability in older women. Osteoporosis, a disorder that weakens the bones, usually causes fractures in the hip and spine, which can seriously affect your mobility and independence.

How can you reduce the risk of these life-altering injuries? Exercising can help.

Certain types of exercises strengthen muscles and bones, while other types are designed to improve balance, which can help prevent falls.

Hormone replacement therapy has been used as prevention and treatment of postmenopausal osteoporosis.

Estrogen-replacement therapy has an effect of improving the vasomotor symptoms of menopause. It has a positive effect on bone mass with more intensity on the trabecular bone, but this effect only persists during hormonal treatment and the negative balance of bone turnover is restored at the end of treatment.

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here's one link: