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.
However, the state of caffeine addiction is more serious if more cups of coffee are consumed everyday. Therefore, for those who drink more than five cups of coffee or tea everyday, it may be harder to discontinue caffeine consumption or it may take more time in order to quit the habit of caffeine consumption.