"Oh, I'm a vegan!" I cringe every time I hear that. Historically speaking, back when mankind were primarily plant eaters, they had to have much larger stomachs, since it took so much more volume of plant material to get enough energy to live by. As such, the body blood was racing around the stomach, trying to extract as much energy as it could. With a finite amount of blood, very little was left to operate much of a brain.
Then mankind became meat eaters - much more concentrated energy, didn't need all that digestive power, the stomach shrank and the brain had a chance to grow into what it is today.
Now, this happened millenia ago, but every time someone brags "I'm a vegan," my mind cannot help envisioning a return to large-stomached pea brains.
No comments :
Post a Comment