My guess is that when we were hunter-gatherers, one of the strongest motivations for us to go out of the cave was an empty stomach. I am purposefully keeping my

My guess is that when we were hunter-gatherers, one of the strongest motivations for us to go out of the cave was an empty stomach. I am purposefully keeping myself a little hungry during working hours. The idea is that my body will keep sending signals to my brain to "not slack off".