Pin it! What limits your ability to perform sustained, or high level exertion?
Your Brain, or Your muscle's ability to perform with adequate oxygen.
Read On...
Added in Health
What limits your ability to perform sustained, or high level exertion?
Your Brain, or Your muscle's ability to perform with adequate oxygen.
Read On...
![Batman [Bane Edition]](https://gentlemint-media.s3.amazonaws.com/images/2014/10/09/194115ff.jpg.563x405_q85_crop-smart_upscale.jpg)
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