top-rated free essay

The Truth About Caffeine 1

By gugu18 Dec 10, 2010 751 Words
The truth about caffeine

How many of you here consider yourself caffeine addicts? How much coffee do you drink a day? One cup? Two cups? More?

If you crave caffeine to get you through the day, you're not alone. About 68% of Americans say they're hooked on coffee this year, compared with 64% last year, according to the National Coffee Association.

But of course, Caffeine and related compounds are found not only in coffee, but also in tea, soft drinks, and chocolate.

Most of us know about the benefits of caffeine. In small doses -- two to four cups per day -- it can increase alertness and energy, as well as temporarily boost the metabolism. But what are the negative effects of caffeine? And for that matter, what exactly is caffeine anyway?

Caffeine is a drug that occurs naturally in plants, such as coffee beans, cacao pods, tea leaves and kola nuts. It is processed into drinks, including coffee, soda and tea, into foods like chocolate, and into some medicines.

First up, what's the truth about caffeine? Is it good for you or bad for you? The answer is: the negative effects of caffeine are largely dependent on how much you consume. Increased consumption of caffeine can lead to health problems.

Today I'd like to give you some of the facts about caffeine and its effects on your body. It may not cause you to change your coffee consumption but at least you'll be better informed about what you are putting into your body.

I'm going to talk about the beneficial effects of caffeine, the negative effects and discuss what are considered safe levels of caffeine consumption.

Let's start with the good news. Caffeine, which comes from the leaves, seeds and fruits of about 63 different plants, is well known as a stimulant. That's why people drink it, right?

We all know that caffeine can increase alertness. A scientist from the UK reviewed 41 caffeine studies from the last 15 years. Most of the studies found that low to moderate caffeine intake - less than 500 mg per day (the equivalent of no more than eight cups of tea or four cups of ordinary coffee) - improved alertness and mental performance.

Research is also showing that moderate caffeine intake can help with memory and depression. Obviously, for college students, it helps you during the week of mid-term exams. Caffeine does help you wake up and it has been shown to increase attention spans.

As mentioned earlier, the negative effects of caffeine depends on your level of intake. I’m going to list out 3 negative effects of caffeine.

It's important to know that caffeine is an addictive drug. Among its many actions, it operates using the same mechanisms that amphetamines, cocaine, and heroin use to stimulate the brain.

and, that brings us to the first negative effect of caffeine, which is – addiction.

Caffeine is a drug, and people can become dependent on it. Most adults around the world consume caffeine every day, in coffee, tea, cola, or chocolate. If you feel like you cannot function without it and must consume it every day, then you may be addicted to caffeine. long-term use of caffeine results in an increased tolerance, meaning that more caffeine is eventually needed to produce the desired effects. Taking caffeine away from an addict can produce withdrawal symptoms including headache, fatigue, irritability and poor concentration.

Caffeine is a diuretic, which means that it causes increased urination and can lead to dehydration. For that reason, it's a good idea to drink plenty of non-caffeinated fluids, especially in warm weather or when exercising.

Caffeine acts as a stimulant and, in high doses, can result in jitters and feelings of anxiety. At doses of about 600 milligrams or more (about six cups of coffee), people show signs of anxiety, including nervousness, sweating, upset stomach and tension.

Tea is a great choice if you are looking for a low-caffeine drink. In fact, a cup of black tea has less than half the caffeine as a cup coffee.

So, the next time you are wondering whether you should have that second cup of coffee to perk you up, relax. You can see that caffeine can have both positive and negative effects on our health and well-being but the bottom line is that if you drink your coffee or sodas in moderation, you don't have to worry too much.

Cite This Document

Related Documents

  • Caffeine

    ...Caffeine in the diet Email this page to a friend Bookmark & Share Printer-friendly version Caffeine is a substance that is found in certain plants. It can also be man-made (produced synthetically) and then added to food products. It is a central nervous system stimulant and a diuretic (substance that helps rid your body of fluids). ...

    Read More
  • about the truth

    ...AN INCONVIENT TRUTH The Earth�s atmosphere is pathetically thin when compared to the size of the earth�almost nothing.� That is why humanity can have such a devastating impact on it.��� What is global warming (aka �greenhouse effect,� �climate change�)?� Sunlight arrives here on earth, giving us light.� Some of the...

    Read More
  • The Truth About Truth

    ...Introduction Throughout Conjectures and Refutations: The Growth of Scientific Knowledge (1963), Karl Popper suggests that no scientific theory can be classified as truth.  The only thing that can be done is to attempt to falsify the theory over and over again reject the theory repeatedly in different situations.  Each failed attempt will s...

    Read More
  • caffeine

    ...Comm 10 Major #1 Informative Speech Evidence Homework #1 Topic: Caffeine Preview: Every morning when I wake up the first thing I do after brushing my teeth is walk straight to the coffee pot. I pour myself a hot rich cup of coffee to start the day off. On my way out the door I grab my go cup and fill it up. When I finally get to school I ...

    Read More
  • Caffeine

    ...Caffeine, the stimulant in coffee, has been called “the most widely used psychoactive substance on Earth .” Synder, Daly and Bruns have recently proposed that caffeine affects behavior by countering the activity in the human brain of a naturally occurring chemical called adenosine. Adenosine normally depresses neuron firing in many ...

    Read More
  • Caffeine Analysis

    ...My name is David Cho * Caffeine is used to provide a "boost of energy" or a feeling of being more alert. It's often used to stay awake longer and many people feel as though they "cannot function" in the morning without a cup of coffee to provide caffeine and the boost it gives them. 9 in 10 Americans consume some form of caffeine regularl...

    Read More
  • Caffeine

    ...Attention Getter: If you drink some kind of caffeine on a daily basis or close to that often, please raise your hand. Those you without your hands raised make up a rare percentage of today’s Americans. An article published in the Chicago Tribune on October 19, 2011 by Julie Deardorff, stated that nearly 90% of Americans drink coffee on a regul...

    Read More
  • The Truth About Ana

    ...Emily Willis Mrs. Cullipher Composition 1 20 October 2013 The Truth About Ana She looks up from the marble counter, mistake. She’s frozen staring at a girl with dull green eyes and paunchy cheeks. Her chapped lips are cracked and painful, opening and gaping, a fish gasping for water. No mirrors. They show her things too true for eyes. ...

    Read More

Discover the Best Free Essays on StudyMode

Conquer writer's block once and for all.

High Quality Essays

Our library contains thousands of carefully selected free research papers and essays.

Popular Topics

No matter the topic you're researching, chances are we have it covered.