The definition of naturalism is a view, particularly a philosophical and artistic one, that bases everything on what can be seen, what is viewed as natural and what is viewed as Earthly. An example of naturalism is an atheistic viewpoint. naturalism.
is caffeine a vasoconstrictor or a vasodilator? Answers: vasoconstrictor. vasoconstritor and a diuretic. Caffeine is also a known competitive inhibitor of the enzyme cAMP-phosphodiesterase (cAMP-PDE), which converts cyclic AMP (cAMP) in cells to its noncyclic form, allowing cAMP to build up in cells.
Coffee and High Blood Pressure. Hypertension research studies have shown that the caffeine in coffee, as well as in other drinks such as tea and sodas, raises blood pressure only temporarily. Once the caffeine is out of the body, the blood pressure returns to its normal level. Studies have also shown that in people who drink coffee on a regular basis, blood pressure does not increase as much as in someone who does not drink coffee regularly.