Your rigid system did not allow me to formulate my complete question:
Why are vascular catastrophes more frequent among table tennis players,
than chess or football players?
I am not a physician. However, being a very old man, have several
practical experiences.
For instance, if somebody sudently makes an end of his sportings, then he
is very likely to get ill in some kind of cancer.
Moreover, if you want to live long, doctors and hospitals have to be avoided
as far as it is possible.