Hello PF, I have heard many times and read in many places that good exercise for at least half an hour a day can be a booster to cognitive functions and helps with studying. And my university campus is huge so everyday just getting from one place to another stackes up into a 12000 steps a day of walking, which is higher than demanded as daily exercice. Does this mean that i do not have to exercice? Or the fact of going to a gym and doing nothing but exercice intentionally is the only way to get the benefits ? Thank you.