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 caffeine is a stimulant, it increases heart rate as well as blood pressure. Therefore, those with heart arrhythmiasÂ³, murmurs, and hypertension should limit their caffeine intake. Itâs important to note that caffeine hasnât been proven to cause arrhythmia, heart disease or other heart-related problems.Â¹.