I don't know how to ask this stuff in a simple wayWhen you drink caffeine, let's say, you drink an energy drink which includes 300mg of caffeine, it is said that the half-life of caffeine is ~5 to 6 hours, so half of that would be gone from your system by thenI can't wrap my head around what happens when you ingest more than just that one can of 300mg or what happens if you ingest it during a prolonged period.Is a single sip of an energy drink giving you that full caffeine amount or is it the can in its entirety?If you drink that single 300mg can but throughout the entire half-life, then what? Does the amount of caffeine in your body stay at a lower level but longer?If you drink multiple cans in a short span, does the amount of caffeine in your body climb to ~600 up to 900mg? What does high dosages of caffeine in your body even do if the half-life is still the same regardless of amount?If you drink multiple cans over a long period does the new can's half-life start ticking off whereas the older one is going down in the background of the new one, or does it kind of "reset" the timer or what?I made a graph of just various scenarios based on the questions.
>is a single sip of an energy drink giving you that full caffeine amount or is it the can in its entirety?the whole can>if you drink that single 300mg can but throughout the entire half-life, then what? >Does the amount of caffeine in your body stay at a lower level but longer?correct>If you drink multiple cans in a short span, does the amount of caffeine in your body climb to ~600 up to 900mg?yes>What does high dosages of caffeine in your body even do if the half-life is still the same regardless of amount?you feel active, outgoing, maybe even jittery>if you drink multiple cans over a long period does the new can's half-life start ticking off whereas the older one is going down in the background of the new one, or does it kind of "reset" the timer or what?the former oneenergy drinks are awful btw
>>35042917Forget trying to divide by infinity.
>>35042917Start by understanding what drives this: the rate at which your body *eliminates* caffeine. The elimination rate at any moment is proportional to the amount of caffeine in your system at that moment. If you have 300mg of caffeine in you, and the half life is 6 hours, your body is eliminating (roughly!) 0.6mg per minute at that moment. As the caffeine level in your body drops, it is eliminated more and more slowly. If you have 250mg in your body, it's eliminating about 0.5mg per minute. When you get down to 150mg, it's eliminating about 0.3mg per minute, and so on. So the amount of time it takes to get from 300mg to 150mg is the same as the amount of time it takes to get from 150 to 75: the less caffeine there is in your body, the slower the elimination rate.>Is a single sip of an energy drink giving you that full caffeine amount or is it the can in its entirety?Obviously that's the amount in the full can. >If you drink that single 300mg can but throughout the entire half-life, then what? Does the amount of caffeine in your body stay at a lower level but longer?Yes. Suppose you drink half a can - that gives you 150mg in your body. About 3.5 hours later, your level will be down to 100mg. If you then drink another 1/6th of a can (50mg), that will bump you back up to 150 again. If you keep drinking 1/6th of a can every 3.5 hours your caffeine level will stay between 100 and 150 for a long time. >If you drink multiple cans in a short span, does the amount of caffeine in your body climb to ~600 up to 900mg? Yes. Don't do this.>What does high dosages of caffeine in your body even do if the half-life is still the same regardless of amount?If you start at 900mg, then 6 hours later (one half life) you'll be down to 450. However much you have in your system, if you don't have any more, one half life later you will have half the amount you started with.Incidentally, 10,000mg of caffeine in your body is enough to kill you. So have a lot less than that.
>>35042917>What does high dosages of caffeine in your body even do if the half-life is still the same regardless of amount?The half life doesn't really have much influence on what it does to you. The effect it has on you depends on how much of it is in your body at that point. If you had 900mg in your system, I would think you'd be feeling pretty terrible: shaky, jittery, anxious, your heart beating too fast, dehydrated because you're constantly peeing, confused, angry, flushed, sweaty, dizzy, prone to diarrhoea, and nauseous.
