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.
Regular, heavy use of caffeine (such as more than 4 cups of coffee a day) may eventually cause: 1  Osteoporosis. 2  High blood pressure and heart disease. 3  Heartburn. 4  Ulcers. 5  Difficulty sleeping. 6  Infertility (in men and women). 7  Anxiety. 8  Depression. 9  Needing to use more to get the same effect. 10  Dependence on caffeine 1.affeine + alcohol: enormous strain on the body, and can mask some effects of alcohol such as falling asleep, leading to drinking more and risk taking behaviour. Caffeine + other stimulant drugs: increase the risk of cardiovascular problems.