A Brief Introduction
When under stress and pressured by deadlines, people tend to overdo it on their caffeine intake: tea, coffee, chocolate bars, anything with a strong caffeine kick will do. This is because caffeine is a stimulant. What that means is that the intake of caffeine results in alertness of the mind as the body, which in turn drives away sleepiness.
The presence of caffeine is lower in tea and coffee than it is in chocolate or cola and energy drinks.
So accordingly, this article deals with the consequences of downing too much caffeine and then suffering withdrawal symptoms which (as we will see) may or may not include blood pressure issues.
So Could Caffeine be the Cause of High Blood Pressure?
Caffeine is known to temporarily raise a person's blood pressure – which is, of course, and obviously the reason we call it "a stimulant". There is a hormone called adenosine, and its task is to widen the arteries. Caffeine prevents this hormone from doing what it is supposed to, and the result of this is heightened blood-pressure. Another "side effect" of caffeine entering a human body is the heightened production of adrenaline, which in turn – even more – increases the given person's blood pressure.
With all this said, it is easy to see how someone would assume that caffeine is considered a drug which tips the balance of a person's natural blood pressure – in general.
Many debates on the topic have been held, as no conclusions have been drawn so far; so it is very important to note that the effects of caffeine on blood pressure (in general) are still at assumption-level and have yet to be confirmed or denied.
The Debate on Caffeine and High Blood Pressure
Recent research has shown a certain extent of, rather curious, results. One of which is that people who have a regular intake of caffeine on a daily basis are, actually, at far lower risk of developing high blood pressure problems, than those who drink it rarely or do not drink it at all. What's more is that a prolonged exposure to excessive intakes of caffeine actually may make a person tolerant to its effects. And even more good news comes with the fact that, with the intake of caffeine, comes a number of useful antioxidant properties.
So, obviously, those who are at risk of "caffeine abuse", are the ones who've already got high blood pressure. These people, however, may suffer an extent of blood pressure issues if they give in to severely excessive doses on a daily basis.
Another interesting thing to note is that various products – which all contain caffeine – have got different effects on the human body, so it is not only the substance itself, but also the form it is delivered in which counts.
Conclusively, despite of all the pros and cons, there is still no solid evidence of caffeine being harmful to a person's blood pressure (unless the issue is already in motion).