Question

When is peak bone mass typically achieved?

a) By early adulthood
b) During early childhood, with peak mass achieved by about age 16
c) During middle age, between 35 and 55 years of age
d) near the end of life

Answer 1

Option (a), Peak bone mass is typically achieved by early adulthood, around the ages of 20 to 30. After reaching the peak, bone density gradually decreases, especially in women post-menopause.

Step-by-step explanation:

When is Peak Bone Mass Typically Achieved?

Peak bone mass is typically achieved by early adulthood. This period coincides with the ages of the 20s and early 30s when physical development is at its height. According to Figure 6.23, bone density peaks at about 30 years of age. After reaching peak bone mass, density usually decreases, with women experiencing a more rapid loss, especially after menopause due to lower levels of estrogen.

It's imperative for individuals to build adequate bone mass before the age of 30, as it can greatly reduce the risk of developing osteoporosis later in life. A childhood diet rich in calcium and vitamin D, along with regular weight-bearing exercise, is crucial for maximizing bone mass during the key developmental years.