Due to the increase of the heart rate and blood pressure, there is higher susceptibility to heart issues like cardiac arrhythmia (Robertson et al., 1978). I hypothesize that the heart rate has a direct correlation to the ventricular pressure, which could explain the increase in the blood pressure. When the ventricular pressure increases, more blood is being pumped out of the ventricles at a higher pressure to the arteries, which could cause the arteries to rupture. I also hypothesize that caffeine could block a signaling molecule or hormone, other than adenosine, that specifically helps the blood vessels widen and therefore, lower the blood pressure. The big picture of the experiment conveys that due to the increased heart rate, caffeine level in the body should be monitored and should not be taken rapidly for it can increase…