Caffeine's Negative Effects On The Body

Attention Getter: Many of you probably drink pop, coffee, or other drinks containing some amount of caffeine. Caffeine has become more and more common, and most people don’t think too much about it. Even if you only rarely consume caffeinated drinks, it’s still important to know what these drinks are doing to your body.

Caffeine is found in many plant species, where it acts as a natural pesticide. It is found most commonly in cocoa, tea and coffee, but is also artificially added to some soft drinks such as cola to act as a flavour enhancer. When consumed by humans, caffeine works as a stimulant causing amounts of released neurotransmitters to be increased. High use of caffeine has been related with raised blood pressure, restlessness, insomnia and anxiety which, in the long term, can lead to heart and circulation problems.

Caffeine disguises as adenosine in the brain. Adenosine tells your body to slow down when it’s time to sleep. The caffeine gets into the bloodstream and stimulates the central nervous system. Way over a week caffeine causes a person to become more alert, react faster, and feel like the person is not working as hard. Caffeine can also cause reduced brain growth. It causes someone’s mind to race and makes it hard for them to concentrate. A person does not get a burst of energy directly from caffeine. It blocks the message from your brain to your body that you are tired. Caffeine blocks off the want to sleep and rest. The result of this is the rise of alertness and wakefulness caused by the release of dopamine and glutamate. Caffeine in a person's body modifies the brain's capability to make good, healthy choices by moving function to the lower part of the brain from the upper part of the brain. Concerning other parts of the body, caffeine can cause both high heart rate and blood pressure. Caffeine can impact

Are you that person that feels the need to make a quick dash to the coffee machine? How about the vending machines? However you fulfill your caffeine craving, just hoping and praying that it will kill that morning or mid-day drag. This daily or sometimes more than daily habit to get that little extra caffeine kick could be affecting your overall health. Caffeine can affect everyone's body and mind differently. Some people may be able to ingest more than other people depending on how fast their bodies can metabolize the caffeine. Excessive consumption of caffeine can harmfully effect the human body in various ways.

In a recent research study produced by the Kinesiology Department of Delaware University, the following findings were presented: that caffeine is a vasoconstrictor and stimulant; caffeine can increase blood pressure by contracting the heart and blood vessels in non-habitual users; caffeine changes the electro-physiological activity of the heart, increasing conductivity, even in limited doses (University of Delaware). In regards to the gastrointestinal side effects, the UD study wrote that caffeine stimulates gastric secretion, stating that some individuals are sensitive to caffeine and suffer ill effects such as acid indigestion, heartburn, abdominal pain, gas or constipation to varying degrees. In addition, caffeine inhibits vasopressin, and it acts as a powerful diuretic. Liver metabolism is

Caffeine is the most widely consumed drug in the world (Harland 2000). This naturally occurring substance found in more than 60 plants is ingested mainly through coffee and tea (Harland 2000; Malek et al. 2006; Paluska 2003). 100mg of caffeine is found in the average cup of coffee (Paluska 2003). Concerns on the long and short term effects of caffeine, have arisen as a result of its popularity and social acceptability. (Harland 2000; Poehlman et al. 1985).

It is known that caffeine in the body raises blood pressure. It is a natural substance that is extracted from plants; common sources of caffeine are from coffee beans, cocoa, tea-leaves and can also be produce synthetically. It promotes alertness, also known as the anti-adenosine. Adenosine is a substance in the body that promotes sleep and with caffeine in the blood stream the adenosine receptor is block thus keeping the body fully awake. Caffeine usually reacts very quickly in the body; it peaks up in the blood within 30 to 60 minutes and has a half-life of 3 to 5 hours. Half-life means the time the body can eliminate half of the drug and half that is retained in the body for a long period. Caffeine is effective if taken on off-and-on basis.

Caffeine is a drug that has been studied for many years to learn more about how it effects the human brain and body. There have been many answers and yet there are still more answers to be found as scientists today continue to understand the effects of caffeine. We will look what parts of the brain involve sleep, how caffeine effects the brain and the body and try to determine if caffeine is a serious health threat or not.

In general, caffeine alters the way our brain communicates to the central nervous system by imitating or changing the release and uptake of neurotransmitters. Caffeine is consumed to awaken and make people alert, however, there are other effects caffeine has on our body. Adenosine, the neurotransmitter that makes us tired, is just one neurotransmitter that is affected by caffeine consumption. For example, if the transmission of dopamine increases, caffeine improves our mood, and may even protect brain cells against age and disease (Weinberg & Bealer, 2015). In addition, if the activity of acetylcholine increases, caffeine increases muscular activity and potentially could improve long-term memory. And lastly, if the level of serotonin adjusts,

Ever since I can remember I have been addicted to caffeine. It started out with drinking diet coke which was my mother’s drink of choice, and then slowly as time went on it turned into Coca-Cola. I have experienced the harsh withdrawals that come with caffeine like the headaches, irritability, and those lovely morning shakes telling me that I need caffeine. The headaches and the shakes finally got so bad to the point where I needed coke in the morning just to function. At that point I realized that caffeine was probably not very good for me. After learning in my Chemistry 130 class that caffeine was classified under heterocyclic amines and was an alkaloid, the same classification that heroin is under, I finally took it upon myself to really get serious and give up caffeine. What I really was interested in however was how does caffeine affect the human body? Do the positive uses of caffeine outweigh the negatives or is caffeine something we shouldn’t be allowing into our bodies? To determine the answers to these questions we need to first familiarize ourselves with what caffeine is and then compare the positives and negatives of caffeine in order to draw a conclusion. So, what exactly is caffeine, where does it come from, where can we find it and how much should we be consuming?

Everyone knows the feeling of waking up and making that morning cup of coffee to help

Thirsty? Quench your thirst with a coke. 5 minutes after taking a sip your palms are sweating, your heart is beating, and your legs shaking. Your eyes are wide open, but you could have sworn that 20 minutes ago you felt sleepy. This is the toll that caffeine has on your body. Caffeine is the substance in coke and other caffeinated drinks, that makes us seem and feel restless. After drinking coke, my heart was beating so fast, that I felt as if I was going to faint. This made me wonder, does caffeine have anything to do with heart rate. This question lead me to conduct an experiment to satisfy my question. The importance of this experiment is to learn about what effect caffeine can have on our bodies. Can it help us or affect

While not as dangerous as drugs like alcohol and opiates, caffeine can cause serious problems when used excessively. Issues ranging from irritability and insomnia to stomach ulcers and heart disease have been linked to caffeine addiction by numerous independent studies and medical examinations.

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

Caffeine has long been thought to cause an increase in blood pressure. While this myth is partially true, the problem is not the evil it was once thought to be. There is a small increase in blood pressure