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.
Because of the cardiovascular stimulation of caffeine, it seems reasonable to assume that drinking 4 to 5 cups of coffee per day would increase the incidence of myocardial infarction. Effects on Central Nervous System: Caffeine has a number of metabolic effects as a central nervous system stimulant. Common side effects of caffeine use include excess nervousness, irritability, insomnia, ârestless legs,â dizziness, and subsequent fatigue.