Watching the olympics it is amazing to watch people from African countries compete in these sprints. I think i've read somewhere that black people actually have more "fast" receptors in their muscles
(something like that), and that is why they can run so fast. If anyone knows, biologically, the real reason, because this is definitely a fact , why black people are better at this event, please explain. Also, this is obviously a beneficial adaptaion, but why do lighter skinned people not posses this trait as well?
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