As we have already discussed that caffeine is one of the key ingredients of every energy drink so the first line of action is initiated through caffeine itself.
To know how long energy drinks last, it is important to understand what happens to these beverages when they enter the body.
Within 10 to 20 minutes of consuming an energy drink, caffeine enters the system, increasing blood pressure and heart rate.
In the next 45 minutes, you can expect these levels to reach the peak level, and that's when you can say caffeine has done its work. You will relatively feel more attentive, awake, and less stressed during this phase.
All the caffeine is absorbed by the bloodstream within 25-30 minutes and the effect starts to wither off after an hour or two.
So, we can say that a typical energy drink lasts for about one hour after consumption in our body. Following that time, fatigue and lethargy kick in and the person starts feeling weak with low energy levels.
Again, this process depends upon many factors associated with the body of an individual including age, height, weight, dietary pattern, daily lifestyle, food choices, genetics, etc.
Read Also: Energy Drinks: How Long Do They Last?
So, the tolerable level of caffeine for your body might differ from someone else. That is why there is no compulsion as to why some people can pull an all-nighter having a fair amount of caffeine while some cannot.
Bottom Line
Probably now you have got the answer to how long energy drinks last. Simply, it varies and depends upon various factors. You might want to visit your healthcare provider to know how much caffeine is suitable for your body's metabolism.
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