Not to mention the speed, even the distance would be impossible for an average person to run in one go.
Chen Feng, during his university days, at his best could only run three kilometers, and that would be his limit, any further and he would start to struggle.
But now, his physical condition seemed even better than during his peak in university.
Though he had already known this, confirming it once again through running still made Chen Feng extremely happy.
It proved that his acquisition and absorption of the intrinsic, intangible energy from those paintings and books was real, not a hallucination.
Moreover, it gave him renewed hope for curing his terminal illness.
Since he could miraculously benefit from those paintings and books, thereby enhancing his physical fitness, there was a possibility that with continuous absorption and increasing strength, his brain tumor could get better, or possibly be completely cured.