Essay on Caffeine Effects In The Brain

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.

White PJ & Nguyen TT. 2002. _Chronic Caffeine Treatment Causes Changes in Cardiac Adenosine Receptor Function in Rats_. 65,3, 129-135.

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).

Right now, caffeine seems like it has nothing to do with your sleep cycle. But it actually has a lot to do with it. Caffeine and adenosine have identical binding structures (show nitrogen rings) which means when you drink coffee, caffeine binds to those adenosine receptors and stays there. But because caffeine has no effect on your neurons it just stays there taking up space. Well, then what’s the problem? Because caffeine is taking up the receptors which are meant to bind with adenosine, adenosine

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,

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

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.

Have you ever drank a cola or any type of soda? Have you read or heard about the main ingredient including caffeine? Well caffeine is a bitter powder like substance that's very unhealthy and healthy in the same cause. Caffeine can lead to heart attacks but if taken in the right amount can help with long days at work.

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.

Your brain can adapt to regular consumption of caffeine. If your adenosine receptors are perpetually clogged, your body will manufacture extra ones. That way, even with caffeine around, adenosine can still do its job of signaling the brain to power down. That’s why you may find you need to consume more and more caffeine to feel as alert: there are more and more adenosine receptors to block. It’s also why, if you suddenly quit caffeine, you may experience an unpleasant withdrawal. With plenty of receptors and no competition, adenosine can work overtime, causing symptoms like headaches, tiredness, and depression.

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.

[Transition: Let's start by talking about some of the positive ways caffeine affects your health.]

Adenosine is another neurotransmitter; adenosine strongly inhibits serotonin release. Chronic caffeine use increases the number of adenosine receptors.(The body is trying to compensate for the constant presence of caffeine, which occupies and blockades adenosine receptors and thus interferes with adenosine reception.) When caffeine is withdrawn, however, the chronic caffeine user is left with too many adenosine receptors. Having too many adenosine receptors is equivalent to having too much adenosine. As a result, serotonin release is inhibited and this leads to migraine symptoms.

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

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