> The connection between exercise and brain health has now been super conclusively and astonishingly shown, but what are some possible evolutionary reasons for

> The connection between exercise and brain health has now been super conclusively and astonishingly shown, but what are some possible evolutionary reasons for this connection? Both physical activity and brain-health improve survival and a small group of people whose brain became healtheir with physical activity survived at a faster rate than others. Isn't it obvious ? I would assume exercise for early humans did not mean spending 30 minutes running for no reason. They probably spent that time running after a rabbit or running way with someone else's wife on his shoulder etc or tribes that kept well trained armies probably survived at a higher rate than tribes that relied on the Shaman to summon the dead.