In 1980, two sports psychologists at Texas A&M University shrank the heads of the Aggie football team. They pronounced the wide receivers the healthiest psychological specimens on the entire offensive unit—less prone than quarterbacks and running backs to anger, tension, and depression. Why? Well, the wideouts had the same lean, muscular bodies as distance runners; maybe, the psychologists theorized, the old saw about runners warding off depression applied to receivers, too.

Of course, NFL stars like Moss, Owens, and Johnson are, if anything, leaner and more muscular than those level-headed Aggie receivers.