Recent News: The Deep. Natalie Farrow was recently cast on Freeform's new pilot The Deep. They are waiting to see if it get's picked up, Catch Natalie Farrow's interview, talking all things iZombie and what it was like to play Ginger.
Caffeine can increase blood pressure; long term consumption at sufficiently high doses has been associated with chronic arterial stiffness. Blood pressure increases are mediated by adenosine receptor antagonism. Caffeine can cause vasoconstriction. It is unclear if caffeine causes increased heart rate as a side effect.
Effects of Caffeine on the Body. Caffeine is a naturally occurring substance found in many plants, including coffee beans and tea leaves. Kola nuts and cacao pods also contain caffeine. Caffeine can also be man-made, and it is added to many of our foods and drinks.Many over-the-counter and prescription medications contain caffeine.hereâs also a great variation in the amount of caffeine an individual can tolerate without unpleasant side effects. If you consume roughly the same amount of caffeine every day, you can develop a tolerance to it. Your tolerance level is affected by your age, body mass, and any health conditions you may have.