Caffeine Levels Experiment

This article discusses the affects caffeine has on several aspects of human health. These included toxicity, cardiovascular effects (arrhythmia, heart rate, cholesterol and BP), bone/calcium balance, behavior, and reproductive and developmental effects. It also discussing the affect caffeine intake has on children and reproductive-aged women.

Many manufactures release the caffeine content of their products publically, but not always, and new products and flavors are continuously introduced to the market. If quality checks are not performed, manufactures may alter the caffeine and benzoic acid content to suit the demands without public knowledge. To ensure the levels of caffeine and benzoic acid in products do not exceed the established safe limits and to inform the public of the amount of these compounds being consumed, various methods of analysis have been performed. Before the introduction of modern techniques, spectrophotometric methods alone were used to determine concentration of a compound in a mixture.6 The caffeine content in coffee, tea, soft drink, and energy drinks were determined using an immunoassay.7 The caffeine content in mixtures also used to have to be extracted before quantification.8

The student can begin to research and accumulate knowledge about dehydration as well as the effects of caffeine in the body. New knowledge about caffeine’s role in possibly interfering with iron absorption and decreasing insulin levels may lead the student to consider additional tests for iron and blood insulin levels. The student may also come to the conclusion that such tests may not be needed, necessary or specific to caffeine intake.

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

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

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.

Introduction: (bring a monster, sip it) alright. How many of you here drink coffee, energy drinks, or soda daily? Well we aren’t alone; according to Villanova Health Service about 90 percent of Americans consume caffeine in one way or another every single day.

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

Many of us find ourselves drinking a freshly brewed cup of coffee, an ice cold soft drink, a hot cup of tea, or an energy drink whether it be in the morning, afternoon, or in the night but one thing is that they all share a common ingredient: Caffeine

Caffeine does have many health benefits. It is a natural diuretic, which increases urine output, which flushes out toxins and excess fluid.

Lab Report: Human Kidney Lab Objectives: The purpose of this lab was to determine the effects of different beverages on urine. After drinking a specific solution subjects tested the urine’s pH, specific gravity and rate of production in 30-minute intervals. Contents present in urine are also measured at the beginning of the lab. Hypothesis: Due to its diuretic properties, it is predicted that the caffeinated soda will cause the highest rate of urine production.

Many of us find ourselves drinking a freshly brewed cup of coffee, an ice-cold soft drink, a hot cup of tea, or an energy drink whether it be in the morning, afternoon, or in the night but one thing is that they all share a common ingredient: Caffeine

The metabolism results of study A showed caffeine results (Fig. A) as expected. Pre-caf gave the earliest caffeine reading, followed by dur-caf. Urinary caffeine levels (Fig. B) were well below the International Olympic Committee regulation of 12µg/ml. Plasma analysis showed that blood glucose levels were higher in the pre-caf treatment, possibly due an increase in metabolic rate from the

Caffeine has many negative effects on humans, such as increased heart rate (Lane, J.D., 2002), depression (Goldstein, 2008), and addiction to this “drug.” You may be asking yourself, “What is caffeine?” Well, caffeine is actually a stimulant (Barone, Roberts, 2008) that is found in beverages such as tea, coffee, and soft drinks. In fact, caffeine is the highest grossing and most used stimulant in the United States (Barone, Roberts, 2008). It is estimated that 85% of adults living in the United States consume caffeine on a daily basis (Barone, Roberts, 2008). That means for every 100 adults, 85 of them have had a drink that contained caffeine on any given day. One reason caffeine is so widely available compared to other stimulants is

Treatment with water, caffeine, alcohol, and gatorade and the effects on urine output, pH, Na+ excretion, and solid excretion were tested at 30 minute intervals for 2 hours. It was found that urine production for each treatment group increased after 30 minutes, increased further after 60 minutes, and then began to decrease. Mean increases in urine production were only significant for Gatorade in the first 90 minutes (an increase of 40% at 30-60 minutes, and a decrease of 73% at 60-90 minutes) and for caffeine over 60-90min (a 48% decrease). The average pH for each treatment group became more acidic by 90-120 minutes. Mean differences over each time