Rodent studies aren't really great for measuring this because it's nearly impossible to control for the rodents' enjoyment of each exercise. We know that rodents enjoy running wheels because they use them voluntarily. It's not surprising that the exercise they enjoy is the one that seems to produce the most benefits. For humans: Doing any exercise is better than doing no exercise. Doing frequent exercise is better th…
> even if it's just getting outside and seeing other people in passing as you run past There is nothing social about that at all, that's just not what the word means.
When I drive my Jeep and do that little Jeep wave to other Jeeps, that gives me a sense of community with those people(no matter how dumb or weird people driving other cars think it is).
When you run and someone runs past you and you do the little head nod, that is absolutely social, you absolutely relate to that person and create a small social bond.