Which of the following is a true statement about physical activity and aging in general?
A) The total amount of physical activity stays the same, but there is a decrease in the intensity and duration of individual activities.
B) The total amount of physical activity declines, but there is an increase in the intensity of individual activities.
C) The total amount of physical activity as well as the intensity and duration of individual activities declines.
D) After retirement there is an increase in the amount, intensity, and duration of physical activity because people have more time to exercise.
Question 2
A current theory of amenorrhea in athletes is that the disruption of menstruation is a direct result of the disruption of the normal secretion of __________.
Fill in the blank(s) with correct word
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