In the first 10 minutes: The 10 teaspoons of sugar in the can of cola begin to hit your body. This is actually the total daily amount of sugar you are meant to consume, so you would imagine that your body needs to prepare itself. You don't immediately vomit from the overwhelming sweetness because the phosphoric acid cuts the flavor and allows you to keep it down.
After 20 minutes: Your blood sugar levels begin to spike, causing an insulin burst. Your liver responds to this by turning any sugar it can get its hands on into fat, and there's plenty of sugar at that particular moment.
After 40 minutes: Your body has completely absorbed all of the caffeine. Your pupils begin to dilate, your blood pressure rises, and as a response your liver dumps even more sugar into your bloodstream.
After 45 minutes: Your body ups its dopamine production that stimulates the pleasure centers of your brain. This is actually the same way that heroine works!
After about 60 minutes: The phosphoric acid binds calcium, magnesium and zinc in your lower intestine, giving a momentary boost to your metabolism. Also, the caffeine's diuretic properties come into play, making you feel the need to relieve yourself.
Finally, once all of these processes stop and the cola has seemingly passed through your system, you will experience a sugar crash. This may make you irritable or sluggish, and maybe leave you feeling thirsty as you have already gotten rid of all of the water in the cola. At this point, you will probably reach for your next cola and then it's back to the beginning.
So before you reach for your next can of cola remember that one moment of refreshing taste has a long list of consequences that can have serious effects on your health. more