Caffeine Case

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

An independent samples t-test was conducted to examine the difference between experimental conditions on test performance. The results indicated a significant difference between participants who consumed the caffeinated beverage and participants who did not, with participants in the caffeinated group (M = 7.64, SD = 2.41) performing worse than participants in the non-caffeinated group (M = 9.81, SD = 3.16), t (97) = 2.14, p < .05.

OBJECTIVE: To investigate the effect of the caffeine on the heart rate of living organisms.

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

III. “The U.S. Food and Drug Administration (FDA) and the American Medical Association (AMA) have estimated that the average daily caffeine

The overview and purpose of this article was to explain all common aspects of caffeine, and the affects it has on both professional and recreational athletes. Caffeine looks as if it is involved in multiple areas of the body, so it is hard for scientist to study the specific effects of caffeine on the muscles, the central nervous system and our fat tissue. This article individually explains the findings of caffeine and performance of graded exercise tests, caffeine and

There has always been controversial chit chat about energy drinks and how they can affect your body, but most importantly how your heart handles the energy drink. In this experiment, 15 well-rounded healthy adults were the participants and they did not drink any type of caffeine two days before the experiment and during the whole thing. Blood pressure, EKG, and the individuals heart rate was measured prior to the experiment, during different parts of the experiment, and afterwards. For 5 days, each of the subjects drank 2 cans of the energy drink each. When the measurements were compared to each other, it showed an increase in heart rate and blood pressure in all individuals. The results proved that these can be very harmful to a person especially

Across all coffee treatment groups, the mean pulse rate at pre-treatment was significantly different to that at post-exercise (ANOVA: F(2, 312) = 211.50, p < 0.0001; Tukey's multiple comparisons: p < 0.0001) and the mean pulse rate at post-treatment was significantly different to that at post-exercise (ANOVA: F(2, 312) = 211.50, p < 0.0001; Tukey's multiple comparisons: p < 0.0001).

The goal of the experiment was to investigate the effects of caffeine on the anxiety levels of college students. A correlation analysis was conducted between the caffeine intake levels and anxiety levels of the students. The group of undergraduate college students who were the subjects of this investigation did not have any previous anxiety disorders. It was initially hypothesized that the correlation between coffee intake and anxiety would be positive. The results of the experiment validated the hypothesis, as the correlation was indeed positive. The p value, however, was greater than 0.05 suggesting that the results were not statistically significant.

Caffeine is one of the most popular drink and psychoactive drug in today’s world (Nehlig, 1999). A lot of studies have focused on caffeine with behavior and there was one article by (Smith, 2002) which was explaining how caffeine has been known to increase anxiety after a dose of 300mg or more has been ingested. In an earlier study by Lieberman (1988) it was also proven the caffeine was to reduce depression when in was ingested in moderate doses (Smith, 2002). Many studies have focused with a large consumption of caffeine or with a single dose of caffeine never truly addressing the tolerance of the participants or seeing the long lasting effects of caffeine on the participants (Soar, Chapman, Lavan, Jansari & Turner, 2016). Caffeine is normally seen as a ‘drug’ that can improve our physical and cognitive functions (Hogervost, Bandelow, Schmitt, Jentjens, Oliveira, Allgrove, Carter & Gleeson, 2008). It is known to hold many beneficial effects with fatigue, concentration levels and the skills being applied to physical and mental functions (Hogervorst et al., 2008). It is able to change our central nervous system along with our reaction time for the better, compared to with when there is fatigue our brain and bodies tend to slow down and lose focus on what was trying to be achieve (Smith, 2002). In the Nehlig, (1999) article they mentioned the ‘mechanism of action of caffeine’ where they went over the best concentration of caffeine is usually achieved around one to two cups of

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

Thesis: Caffeine is something that almost everyone has consumed and some people are even addicted to. Caffeine has negative and positive effects on one’s health

A study conducted by Dr. Lucio Mos found that young adults who were identified with mild hypertension had four times the risk of having a heart attack if they consumed a quantity of caffeine equated to four cups of coffee. More moderate consumption showed three times the risk.The 12-year study of more than 1,200 subjects found that serious coffee drinkers had a four-fold increased risk while modest drinkers trebled their risk. Future prediabetes attenuated the associations suggesting that the effect of coffee on cardiovascular events may be facilitated by its long-term influence on blood pressure and glucose

A qualitative question was inquired from the participants asking them to discuss why they like consuming caffeinated beverages as well as to list the types of caffeinated drinks they consume. A very prominent answer was that the reason that they consume caffeinated beverages was that it provided them energy. All but one participant included this in their answer. Many of the participants have also explained that the beverages helped them focus in class. A similar answer among the respondents were “It gives me energy” and “It helps me focus in class” as well as “It helps me stay focused”. One participant, a college graduate, similarly answered “It helps me stay awake during my long commute”. In addition, another predominant reason why the respondents in this sample liked caffeinated beverages was because of the taste. Every participant answered that they either liked the smell and or the taste of coffee. One participant answered “Coffee is always a good idea” while another participant answered “Drinking Monster taste good and makes me feel very good!” Furthermore, when listing the types of drinks the participants consumed, coffee and tea were majority of the replies. Many of them listed the types of coffee they enjoyed such as dark/light roast, Americano, expresso, and a cold brew type of coffee. High school level students and college level students listed either