The Effect Of Caffeine On The Brain

Caffeine is a wildly use drug in today’s society. Caffeine is a methylated xanthine which acts as a mild central nervous system stimulant (MS & RL, 2001). It is a stimulant which acts upon the central nervous system and increases alertness, wakefulness and restlessness and it increases the release of catecholamine from renal medullar (Fernandez, 2016; Collines, 2007). It is present in many beverages. Caffeine is found in coffee, tea, soft drinks, products containing chocolate (cocoa) and some medication (Collines, 2007). It is used as a cardiac and respiratory stimulant (Collines, 2007).Caffeine is the most frequently ingested pharmacologically active substance in the world (Collines, 2007).

Caffeine is a huge component in pre-workout supplements, and is probably the one ingredient that is most controversial. Chemically, caffeine does promote alertness and focus, but the long-term effects and other side effects are what scare most people away from taking additional caffeine to what many people already take on a daily basis. When someone gets tired, it is because of a chemical called adenosine. Adenosine builds up in the brain whenever you are awake, and it binds to adenosine receptors on brain cells. The binding of adenosine causes drowsiness by slowing down nerve cell activity. To a nerve cell, caffeine looks just like adenosine, so caffeine is able to bind to the adenosine receptors in your brain. However, caffeine does not slow down the cell’s activity like adenosine would. The cell cannot “see” adenosine anymore because caffeine is taking up all the receptors adenosine binds to,

Caffeine is a substance found in coffee, tea and most sodas. When it is consumed, it is a mild stimulant. The energy drink, Monster, contains caffeine, which has the ability to manipulate adenosine (adrenaline), a substance present in the brain that is used to transmit brain signals to different parts of the body. Adenosine causes an increase in alertness and awareness. Modern studies show that there is direct benefits of the so-called “caffeine kick” that is experienced by drinkers.

Adenosine binds onto receptors on the brain cells, which causes people to feel the tiredness and laziness; however, because the two molecules are very similar, caffeine too is able to block the receptors. The excess adenosine is converted into adrenaline which most people are used to experiencing when drinking coffee, a sense of alertness and energy for about 4 – 6 hours. It also helps the natural stimulants work better, so, in a way, caffeine is a stimulant for stimulants. All of this information culminates in the fact that these stimulants that are activated due to the caffeine are what cause the heart to beat rapidly, either too fast for the daphnia to survive, or just enough that they are more active, like humans are when ingesting caffeine. Caffeine also causes hunger as the body is in an “overdrive”

As people around the world discovered caffeine in their native vegetation, various cultures concocted drinks or chewed on the plants leaves to experience its effects. 90% of the world consumes caffeine daily and in each of those billions of humans, caffeine spread itself throughout their bodies and enters their brains. So how long does caffeine stick around in the body? The half-life of caffeine, or the time it takes of half of it to be broken down, is between five and six hours on average in adults. As the caffeine gets broken down, what does it become? Pure caffeine is a powerfully bitter white powder. So if caffeine is affecting the brain in so many ways, why isnt caffeine powder being snorted alongside coke or shot alongside heroine? Caffeine

Jenna has been using coffee in a large amount everyday (1 cup in the morning, one in the afternoon and two or more in the evening) therefore her body has build up a resistance to caffeine ingredient. As we know, caffeine binds to adenosine receptors to reduce drowsy feeling, however, after a while of using coffee, the brain of Jenna keep creating more and more adenosine receptors, which also means she will need more and more caffeine to keep her awake. Alex also uses coffee, but he does not use as much as Jenna and his brain has not develop much more adenosine receptors, therefore he only needs a limit amount of caffeine to keep him awake. Sally uses stress as her motivation instead of coffee, so she does not have a habit of using caffeine and her brain does not need caffeine to stay awake

Spriet and Graham,"Caffeine and Exercise Performance”, point out their research on overuse of caffeine. Drugs contain caffeine can cause gastrointestinal discomfort, cramps, insomnia; palpitations should be used in accordance with the prescribed dose. Caffeine effective strengthening of intellectual clarity, and improve thinking ability through blockade of receptors which perform functions adenozyn inform the body needs to sleep. In addition, caffeine also changes some biochemical processes in the body, 2 cups of strong coffee can increase three times the amount of adrenalin in the blood, at the same time accelerate the respiratory rhythm. Caffeine also increase dopamine production stimulating the pleasure centers in the brain, makes people

Caffeine (C8H10N4O2) in it chemical nature is a central nervous system stimulant which acts by dilating blood vessels and preventing adenosine from inhibiting the release of glutamate. (Oxford University Press, 2016) Caffeine as a widely used drug, is frequently studied in regards to its performance and physiological effects on an individual. (Harland, 2000)

This drug has similar structures to adenosine, which causes drowsiness at the cellular level. Because the two drugs are similar in structure, the caffeine molecule actually attaches to adenosine, inhibiting its ability to cause drowsiness (Villanova). Caffeine is a stimulant drug after all, which can be defined as a drug that raises physiological and nervous activity in the body. Due to the increase in nervous system activity, there are many effects on the nervous system directly. Caffeine directly increases alertness in the brain, causing a greater feeling of being awake and aware, making it a common addition to many medications. Too much caffeine, however, creates headaches. Too much over a long span of time can actually cause the body to develop a tolerance to the drug, which means the body will need more of the same drug to receive the same effect it once had. At this point, withdrawal symptoms can accompany a sudden halt in caffeine intake (Pietrangelo). Researching the effects of this common drug on the central nervous system is significant because of its widespread use worldwide. Our experiment sheds light on the actual effects of caffeine on important aspects of daily life, athletics and intelligence. Using the qualitative and quantitative data collected from the test

1,2,7-trimethylxanthine commonly known as caffeine is the best known N-compound due to its physiological effects on the central nerve system, blood circulation and respiration. Caffeine is the most widespread consumed behaviorally active substance and almost all the caffeine sources are dietary (Fredholm et al. 1999). The caffeine content of e.g. coffee differs depending on the Coffea variety and the content only decreases in small amounts during roasting (Belitz et al. 2009). In the US Coffee consumptions contributes to 71% of caffeine intake among adults (O'Keefe et al. 2013), however caffeine can also be found in tea, cacao, chocolate as well as sodas. It is found that most notable changes in the behavior occur after low to

Caffeine is a stimulant drug and the most widely-consumed mid-altering substance in the world. Most of the effects of caffeine are thought to be traceable back to its action as an antagonist at receptors for adenosine, a neurotransmitter. Caffeine binds to adenosine receptors and blocks adenosine from binding there and activating the receptor; thus, it reduces activity at the adenosine receptor. Although there are four subtypes of adenosine receptor, most of caffeine’s effects are thought to be due to its antagonistic actions at the A1 and A2A subtypes. Its ability to produce wakefulness may be especially due to actions at the A2A receptor subtype. How exactly the antagonism of the adenosine receptor translates into the effects of caffeine

Caffeine Effects In The Brain Caffeine acts in a multitude of ways in the brain. The most recent studies explore the cooperative effects of adenosine and dopamine, as well as the increase in calcium in the interstitial fluid and possible accumulation of cyclic adenosine monophospate. The most popular discussions of earlier studies of caffeine demonstrate its antagonistic effects on adenosine receptors. While it has been reported that adenosine receptors are located throughout the brain, the various subtypes can be found in very specific areas.

Caffeine, or 1,3,7-trimethylxanthine, is a psychostimulant which, just like other classical psychostimulants, such as cocaine and amphetamines, increases motor activity, induces arousal, and creates reinforcing effects (Griffith & Woodson, 1998). It has multiple side effects which are produced by many biological mechanisms, the most important one being the inhibition of adenosine receptors (Green & Stiles, 1986).

The use of caffeine is worldwide, contained in a range of foods, beverages and medicines with it being one of the most frequently consumed ingredients worldwide (Heckman, Weil, Mejia, & Gonzalez, 2010). Extensive research has been conducted into caffeine and its effects on our cognitive functioning and development, with many studies concluding that due to its beneficial effects surrounding enhanced performance and awareness, caffeine is a safe and valuable enhancement to our daily lives (Mejia & Ramirez-Mares 2014, Zwyghuizen-Doorenbos, Roehrs, Lipschutz, Timms & Roth, 1990).

Americans consume an average of 400 cups of coffee a day, which adds up to 146 billion cups per year. Coffee is a very popular drink that has a high concentration of caffeine. Typically, adults drink coffee, but it has spread to adolescents over the years. Coffee is typically classified as a drug because of its addictive properties to caffeine. The scientific term for caffeine is trimethylxanthine (C8H10N4O2). This substance can be found in coffee beans, guarana (plant in the maple family that is commonly found in Brazil), yerba mate (a species of holly made into tea and commonly found in South Africa), cocoa beans, and tea. It was originally found in Ethiopia in the 11th century. It was called the “magical fruit.” In the beginning, they would boil the leaves in water to create a bitter taste which was thought of as having medical properties. After technology became more prevalent, the first drip coffee maker was made in 1908 by Melitta Bentz. When purified, caffeine looks like a white colored powder that tastes very bitter. For plants, it is used as a pesticide. In one’s brain, it is a very strong substance and is able to alter the brain’s signals. Every brain has adenosine receptors. Adenosine binds with them to make one tired. An adenosine and caffeine molecule look very similar and are able to contradict each other. Caffeine replaces the adenosine in its receptors to send an alert and awake signal instead of a tired one. Then, it releases adrenaline which increases heart