What impact does caffeine consumption have on blood pressure?

Caffeine consumption can temporarily raise blood pressure due to its stimulant effects on the nervous system. When caffeine is ingested, it blocks the action of adenosine, a neurotransmitter that promotes relaxation and sleepiness. This blockage can lead to increased heart rate and a rise in blood pressure as the heart pumps more forcefully.

Additionally, caffeine may also increase the release of certain hormones, such as epinephrine, which can contribute to a short-term spike in blood pressure. The degree of this rise can vary among individuals, with some experiencing a more pronounced increase than others.

Over time, habitual caffeine consumption may lead to a level of tolerance, potentially mitigating its long-term effects on blood pressure. However, during acute intake, the temporary elevation is a well-documented response and is particularly noticeable in individuals who do not consume caffeine regularly.