The most typical thing is that the heart muscle will thicken. In order to improve the blood supply speed, the heart muscle will contract faster, so it will become thicker. This is very simple.

But don't worry, it's not the same as pathological myocardial hypertrophy, and it won't harm your health.

I am a student of sports human science in the Institute of Physical Education. Can I still guarantee that the teacher will not lie to me?