Yes humans still have the ability to be adapted for endurance running by strict training.
We know that humans have an unusual ability to adapt to the changes in the environment also we know that humans can be able to achieve very great feats by the training of the body.
It is clear that the body is able to do a lot of things if an individual is able to strictly train the body and enable it to carry out a lot of training and the endurance ability of the body can only be developed by strict training in which the muscles are trained to be able to absorb stress without breaking down.
Thus the ability to retain endurance still persists in humans but it must be cultivated by the process of a strict trainning.
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