Which of the following is a physical change of a middle-aged adult?

Question

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Subcutaneous fat, or the fat between the skin and muscles, tends to decrease in middle-aged adults due to a decrease in metabolic rate and physical activity levels. This is a physical change that occurs in both men and women of this age group. Blood vessels becoming thinner and more elastic is a typical change of aging, but not specific to middle-aged adults. Visual acuity decline is also a common age-related change but is more specific to the mid-60s and older. Hormonal changes can occur in both men and women of this age group, but not just in women.

Which of the Following Is a Physical Change of a Middle-Aged