In The First 10 minutes: 10 teaspoons of sugar hit your system. (100% of your recommended daily intake.) You donâ€™t immediately vomit from the overwhelming sweetness because phosphoric acid cuts the flavor allowing you to keep it down.
20 minutes: Your blood sugar spikes, causing an insulin burst. Your liver responds to this by turning any sugar it can get its hands on into fat. (Thereâ€™s plenty of that at this particular moment)
40 minutes: Caffeine absorption is complete. Your pupils dialate, your blood pressure rises, as a response your livers dumps more sugar into your bloodstream. The adenosine receptors in your brain are now blocked preventing drowsiness.