Or faster. Or heal faster. Because this: while I am not going to find research studies this morning to make my point, I can make a general observation about health if all I did was look at military recruitment. I'm a veteran, and when I signed up back in 1973, the number of eligible folks was far, far higher. Today that number has dropped precipitously because of obsesity, early-onset diabetes and a slew of other health factors. We can't get people into the Army etc. because so few of them are healhty enough to serve. That alone argues for what has happened to "youth", and youthful strength and vigor. In general, I would agree. In practice, where America is, and I can't speak for other nations, we have decimated the strength and vitality of our youth to eating disorders, starvation, sugar, lousy food, sometimes overexercising, steroid use, drug addiction. Strong? Hardly. We've aged our young into ancients by the time they're thirty. But that's another article.