The Effect of Caffeine on Reactions

My experiment went reasonably well, the majority of the results that I have collected went according to my prediction. I found some odd results and there are a number of reasons why they are wrong. Some people could be resistant and can stand this caffeine, depending on how much they drink coffee or coke. Every time they drink it, they become more resistant. Also this could depend on the size of the person, the sex and how fast it takes them to absorb it into their bloodstream. Also this experiment took place after lunch so people could have been playing football or other activities. This could increase the rate of the heart beating. Also it could take time for the caffeine to take effect or they just didn't wait long enough for it to take effect.…