Caffeine Experiment

The glucose levels in the blood increase and cause and increase in insulin production with and increased amount of sugar intake. With an increase of caffeine intake the heart rate increases and cause anxiety, insomnia, and the blood vessels to expand.

According to the results, the columns of caffeine in figure 1, of this experiment the hypothesis for caffeine is partially accepted. There is an increasing trend in the change of pulsation rates with increasing

The data from the mean indicates that caffeine consumption resulted in a heart rate increase for all the patients at an average of 12 units from the normal rate. In addition, the standard deviation post consumption is consistent with mean as it was represented by a factor of 9.74 before the caffeine and 11.58 after. The high deviation after caffeine could be attributed to the fact that caffeine does effect each person differently. The median and mean relate heavily, showing that there was not a large presence of outliers in the data and that there is consistency between each participant’s response to caffeine. The normal distribution of the data was evidenced by the interquartile deviations where the lower quartile was 63.50 before patients were served with coffee and upper quartile of 77.50 and with simultaneous changes after caffeine drinks with low quartile being 74.50 and upper quartile at 92.50. The quartiles distributions show steady changes in heart rate with respect to

Daniels JW, Mole PA, Shaffrath JD, & Stebbins CL.1998. _Effects of Caffeine on Blood Pressure, Heart Rate, and Forearm Blood Flow During Dynamic Leg Exercise._ Biological Sciences. 85,1, 154-159.

The temperature of the caffeine was raised as the pressure was decreased. The pure caffeine was converted back into a solid when it condensed on the cold finger. Food and drinks that contain caffeine include coffee (16 ounce serving containing about 133 mg), soft drinks (23-69 mg per 12 ounces), and chocolate bars

The effects of caffeine and alcohol on daphnia are expressive of whether these substances are harmful or beneficial to the organism. By understanding the results of this experiment, it may also be understood how these substances effect humans. In this study, one daphnia was exposed to increasing levels of alcohol, while the other was exposed to increasing levels of caffeine, each in order to test the hypothesis that when given amounts of caffeine and alcohol, the daphnia will be affected the same way a human would. The effect of each substance was measured by the daphnia’s heart rate one minute after the substance was added. Results reveal that alcohol slows the heart rate, while caffeine increases heart rate. Furthermore, caffeine shows a

Caffeine is a photoactive stimulant found in plant species. These plant species vary including tea, coffee and cocoa. The caffeine is absorbed fully into the stomach and small intestine after 30 to 45 minutes, which is the peak of the caffeine. The caffeine is in a person’s body for up to 4 hours. Caffeine has consequences if over dosed. Anxiety, heart palpitations, headaches, insomnia and nervousness are all physical and mental conditions that can be present if you have caffeinism. This research gives me an insight into caffeine I would have never known if I did not chose this topic to study.

One part of the human body that too much consumption of caffeine can affect negatively the your heart. Caffeine speeds up your brain cells, which speeds up your heart beat in the process. Too much caffeine will also raise your blood pressure. Caffeine using adults were polled on their stress levels given a 1 to 5 rating, with 5 being the most stressful. With each stress rating, each adult averaged a 1.7/0.4 mm Hg in blood pressure, and 1.8 beats per minute more in heart rate than adults in the lower stress rating (Lane, J.D., 2002). With further testing, they found that stress level and caffeine went hand in hand, with the highest caffeine users being the ones with 5 stress ratings. This study showed that consuming caffeinated beverages raises your blood pressure and heart rate by a considerable amount. In the same study as above, they used 500 mg of caffeine (close to 4 cups of coffee) to see how much it raised a person’s blood pressure throughout a single day. On average a person’s blood pressure was 4 mm Hg higher during than day than on a normal

This paper explores and explains the findings of the heart rate experiment conducted by the students of Grand Canyon University for the Anatomy and Physiology 202 Laboratory course. Over a two week time span, students were asked to record their heart rate, before, during, and after activities as instructed by the professor. Specifically, this paper focuses on the female students, comparing the heart rates of individuals who reported that they drink coffee versus those females who reported that they do not drink coffee. The effects of caffeine contained in the coffee were examined and it was noted that those who drink coffee have lower heart rates before, during, and after times of examination. These findings suggested that the hypothesis proposed prior to research, Females Who Drink Coffee Have a Higher Heart Rate Prior to Exams, was an incorrect statement.

such as irregular heartbeat and seizures. There are people who are very sensitive to caffeine intake and

About 9 million metric tons of caffeine are consumed around the world every year. That’s equal to the weight of 1243 Eiffel towers. Most of this caffeine is consumed in coffee and tea, but it’s also ingested in some sodas, chocolate, caffeine pills, and even beverages labeled “decaf.” Caffeine helps us feel alert, focused, happy, and energetic, even if we haven’t had enough sleep, but it can also raise our blood pressure and make us feel anxious. It’s the world’s most widely used drug…so how does it keep us awake?

Firstly, when drinking caffeinated drinks or anything that contains it the caffeine goes through the blood stream and directly to the brain. When we drink coffee, caffeine binds to our brain's adenosine receptors, stopping the chemical from binding with the receptors and making us tired. For the ones who regularly drink coffee in plentiful amounts, their brains develop more adenosine receptors, so it takes more coffee to keep us awake. That explains also why when we try to lay off the coffee a tad its very tiring to us because, were so use to that adenosine going to the brain. Whenever you’re awake, a chemical called adenosine slowly accumulates in your brain.

Thesis: Caffeine can have many different effects on the body depending on the amount of consumption.

One on the beneficial effects on caffeine, two the negative effects, and finally on trends in caffeine consumption

is derived from a bean or from tea leaves and can be found in the