Incorrect. It is true that women have more estradiol than men. It is also true that the difference in estradiol levels could help explain differences in exercise performance between men and women. However, the difference in the amount of estradiol itself is not a piece of evidence supporting the theory that there are gender differences in exercise performance.

The theory that there are gender differences in the response to exercise is supported by numerous studies that have shown a lower respiratory exchange ratio in women during endurance exercise.

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