Which ONE is TRUE of male long-distance runners?

Question

Quizplus · Accepted Answer

Male long-distance runners have been found to have lower-than-average levels of testosterone. This is likely due to the energy demands of long-distance running, which can lead to a reduction in testosterone production. Studies have also shown that male long-distance runners have higher levels of cortisol, a stress hormone that can inhibit the production of testosterone. While there may be some changes in body composition and muscle mass due to endurance training, there is no evidence to suggest that male long-distance runners have smaller testes or feminized buttock contours. Furthermore, it is unlikely that they have higher estrogen levels, as estrogen is typically only produced in significant quantities by females and in smaller amounts by males.

Which ONE Is TRUE of Male Long-Distance Runners