Did a test. Heart rate 55-60 bpm before consuming monster sugar freeenergy drink. BP 124/71. 45 mins after HR same. BP 121/68. Why no raise in either?
Nature of the drug
The caffeine in energy drinks is primarily a stimulant to the nervous system. It impacts the cardiovascular system only in toxic doses, or in people who are particularly sensitive.
This is particularly true if you are habituated by regular use.