Physical fitness

I just exercised for 60 minutes, running in two phases: I accelerated until my heartbeat reached 150 bpm, and then I decelerated until my heart slowed down to 120 bpm, and then did it again and again.  Endorphins just kicked in yo.

Will I be able to learn more from SICP if I'm physically more fit (like the Sussman)?

As your body muscle mass continues to increase, more energy will be diverted from your brain and will be applied to supplying blood to your rapidly expanding body. In doing so, the net oxygen levels in your body will decrease. This deprives the brain of sufficient O2 levels and effectively decreases mental capacity as brain tissue begins to shrink. Studies show shrunken brain tissue can be recovered up to 76.33% if a more sedentary lifestyle is followed, along with a diet high in trans fatty acids, carbohydrates, and cholesterol.