Caveat: a lot of people think if nootropics and stimulants like modafinil when they hear 'performance-enhancing drugs'.<p>This talk does not appear to be about those at all, but pretty much solely about steroids and certain sports (specifically, just baseball's batting; comments criticize talker for any generalization beyond that).<p>Some interesting points I hadn't heard before:<p>> A little calf has a lot of growing to do. Milk has a lot of insulin-like growth factor in it, which causes insulin resistance. Insulin resistance in a human being is somewhat troubling to our metabolism, not to mention the foreign proteins in milk.<p>> The Paleolithic was a very cold period; humans were forced to the shoreline about 50,000 years ago, at the height of the last glaciation, actually got worse about 17,000 years ago. Rapid expansion of human brain that took place during that period was, one, probably engendered or assisted by need to survive that brutal ice age; and two, by the seashore-based foods that occurred because we were forced to the shorelines for protection to the cold.<p>> The Paleolithic was a very cold period; humans were forced to the shoreline about 50,000 years ago, at the height of the last glaciation, actually got worse about 17,000 years ago. Rapid expansion of human brain that took place during that period was, one, probably engendered or assisted by need to survive that brutal ice age; and two, by the seashore-based foods that occurred because we were forced to the shorelines for protection to the cold.<p>> The people who try to do caloric restriction are trying to turn down the insulin IGF pathway--growth and reproduction. Claim: If I eat very little I will live long. What do you think of that? Think it's bogus. Cause a miserable life. Spoke to their society; some admit to being cancer-? [sp.?] or to cheat.<p>> The people who try to do caloric restriction are trying to turn down the insulin IGF pathway--growth and reproduction. Claim: If I eat very little I will live long. What do you think of that? Think it's bogus. Cause a miserable life. Spoke to their society; some admit to being cancer-? [sp.?] or to cheat.<p>> The people who try to do caloric restriction are trying to turn down the insulin IGF pathway--growth and reproduction. Claim: If I eat very little I will live long. What do you think of that? Think it's bogus. Cause a miserable life. Spoke to their society; some admit to being cancer-? [sp.?] or to cheat.<p>> Distance runner versus versus sprinter. But for sprinter--10 seconds, of course they are happy. The other guy labored for 2 hours. But the sprinter is burning energy for 4-5 hours after the sprint--at a prodigious rate. You don't have to be doing something to benefit. The post-exercise period from a high-intensity session lasts for many hours, during which your body consumes huge amounts of fatty acids.