So 1/3 is "everything" to you? Also, elevated cortisol levels are associated with any exercise done to excess. Why single out running? Why focus on the negat

So 1/3 is "everything" to you? Also, elevated cortisol levels are associated with any exercise done to excess. Why single out running? Why focus on the negative? Running might not be the best possible exercise, there might be others that are even better, but it's highly accessible and running is overall better than not doing anything. That's totally lost in all the FUD the OP was slinging.