Physiologically, there also are differences on two key hormones: testosterone, which is the dominance hormone, and cortisol, which is the stress hormone.
So what we find is that high-power alpha males in primate hierarchies have high testosterone and low cortisol, and powerful and effective leaders also have high testosterone and low cortisol.
And, but you know, they shoved me straight into a doctor who would inject cortisone into each spot, which died then but not really in there, you know, that kind of thing.