The philologist Wall says that reading books is healthier for the mind than running:
In good fiction, not only are there so many layers, there is more to it than just the plot. Why do people like detective stories? It's a phenomenon to love detective stories. Well, something just happened, someone killed someone. Once we start following a thought or following this plot, it captivates us, it frees us from these worries of the day, from the worries that are here they will return, they will always be with me. But for some time now I have been completely freeing my mind.
It won't be done by any, you know, running or any kind of exercise, which also, of course, has positive effects. But this transition to another world, and then coming back from it, I come back stronger.