As the day progresses your body burns through ATP for energy. The adenosine from the ATP builds up as this process goes on. When this happens, it activates receptors on acetylcholine neurons in the ARAS, a part of the reticular formation that makes your brain sleep, thus making you sleepy. Coffee (caffeine) and tea (theophylline) blocks adenosine from binding to these receptors, keeping you awake. And that’s a shorthand version of how caffeine keeps you up to study for hours and hours.
So we learned this in Neuroscience….
Neuroscience > Child Development.
I’m stuck in this class until I rot and die. It also took me 5 minutes to decide whether I wanted peanuts or a sweet and salty mix from the vending machine. Stuck here forever.
“To love at all is to be vulnerable. Love anything and your heart will be wrung and possibly broken. If you want to make sure of keeping it intact you must give it to no one, not even an animal. Wrap it carefully round with hobbies and little luxuries; avoid all entanglements. Lock it up safe in the casket or coffin of your selfishness. But in that casket, safe, dark, motionless, airless, it will change. It will not be broken; it will become unbreakable, impenetrable, irredeemable. To love is to be vulnerable.”—C.S. Lewis (The Four Loves)