Today many more people have cultivated the habit of drinking coffee at work or in school. Many often do this with the belief that coffee helps them to remain focused and keeps their nerves in check in order to deal with daily work problems or studies as the case may be.

Fairly good reasons why people now take coffee, but a new studies have shown one major disadvantage of caffeinated coffee – it acutely increase blood pressure – decaffeinated coffee does not, however.

Caffeine seems to be a major factor in affecting blood pressure, and experts suggest that as such, it is also a trigger for cardiovascular interruptions.

A team at the Western University and Lawson Health Research Institute in London and others from, Ontario, in Canada, came up with some surprising results when they measured the effect of occasional coffee consumption on blood pressure, and especially how coffee consumption impacts the action of calcium channel blockers like felodipine.

They carried out three tests on the subjects, separated in time by 1 week. Before each test, the subjects consumed no coffee, caffeine-containing products, or other items such as alcohol, grapefruit, marmalade, tobacco, and medications for 48 hours.

Results showed that, after the participants avoided coffee for only two days, enough caffeine was eliminated from the body so that the next time they drank coffee, their blood pressure rose.

After just one cup of coffee, the participants in the coffee-only group experienced the greatest increase in blood pressure. The blood pressure rose within an hour after drinking coffee, and it lasted for several hours.

Combining coffee with felodipine led to higher levels of blood pressure than taking only felodipine. This could be because the caffeine blocks the positive effect of the drug on the blood vessels, the researchers say.

They noted, however, that a morning cup of coffee could affect the diagnosis and treatment of hypertension, or High Blood Pressure.

If you are on a blood pressure medication, it is reasonable to avoid products containing caffeine.


Author: Dotun Obatuyi

My name is Dotun Obatuyi (Dotunoba), I hail from Osun state, a public health scientist (monitoring and evaluation specialist), my keen interests are researching, critiquing and writing feature articles on health, science and technology as well as issues around the globe.