Caffeine Caffeine is the most-widely consumed psychoactive substance by human beings throughout the world (Reid, 2005). This report will detail its natural origins, chemical structure (as well as those of similar substances), and the methods and dosages in which it is rendered into its usable form. Additionally, this report will detail caffeine's various biological pathways within the human body, including access to the brain and various neurotransmitter pathways. Caffeine is a chemical

Caffeine. All of you probably already know what caffeine is. In case you don’t, it is a common legal stimulant drug, that is in a lot of the things that we eat and drink. In its pure form,it is a white powder, but it is also found in many different types of plants. Some of the most known products with caffeine in them are coffee,chocolate,sodas and tea. What you might not know is that caffeine is also in things you might not expect, such as pain killers and sometimes even ice cream. Caffeine is in

Caffeine is a drug used to stimulate the nervous system, cardiac muscle, and respiratory system. Its molecular structure is C8H10N4O2. Caffeine is excreted by the kidneys, the stomach, and small intestine and goes directly to the bloodstream and brain. Once ingested, it is rapidly absorbed through the stomach lining, and reaches the bloodstream. It can affect the brain within 15 minutes and can last for hours. It becomes equally distributed throughout the water of the body, later being metabolized

Caffeine in Athletics The world’s most popular drug is legal, inexpensive, and believed to amplify workouts. It supposedly motivates athletes and helps them stay alert and focused while also boosting physical endurance by twenty to fifty percent. This stimulant is found naturally in sixty-three plants and is consumed by eighty percent of Americans. This white, bitter, crystalline substance is known as caffeine, and is commonly consumed in efforts to enhance athletic ability (http://gopher1

Since long ago caffeine has been part of human life. According to the Chinese legend, tea was accidentally discovered on or about 3000BC. The earliest credible evidence of a coffee tree appears in the fifteenth century in Arabia and rapidly spread to Africa and later to Europe. The stimulant property of caffeine has been known since remote times and in some regions of the world caffeine was illegal or banned. It was not until 1895 when Emil Fischer synthesized caffeine and years later he was awarded

Most people aren’t aware that caffeine can act as a stimulant to the central nervous system. So once someone consumes a caffeinated beverage they may begin to notice a slight change in the way their body begins to feel. Caffeine can be found in many different places such as energy drinks, coffee, candy and also in other common beverages and over the counter medications. Caffeine can have major side effects on those who consume it on a regular routine, but caffeine can also have side effects on those

Caffeine Caffeine is a stimulant drug, a bitter and white crystalline xanthine alkaloid. It is found in the seeds, leaves, and fruit of some plants in varying quantities. Coffe ‘bean’ is the primary source of caffeine.Content of caffeine in bean varies depend on the type of coffe bean. For a single shot (30 milliliters) of arabica-variety espresso,the range for one serving of coffee is 80 to 100 milligrams and for a cup (120 milliliters) of drip coffee is approximately ranges from 100 to 125 milligrams

Is Caffeine Addictive? As exams approach, students everywhere reach for their coffee mugs, their Vivarine and No-Doz. Legions of wide-eyed and shaky young people stay up late into the night, printing out final papers and cramming a year worth of information into their over-burned minds. Falling asleep over books is not acceptable at this time of year. But this is not a new thing; many students have a late-night lifestyle supported by caffeine, getting an average of 5 hours of sleep a night.

Caffeine, also known as methyltheobromine, is a central nervous system stimulant that humans consume on a daily basis. Found in coffee, tea, and other caffeinated beverages, caffeine has many side effects. While caffeine can make the consumer feel more alert, there are health concerns such as dependence and hypertension. Caffeine has a specific chemical structure that enables it to be absorbed easily into the stomach and intestines. It is derived from purines, and is hydrophobic, which allows easy

relaxing in the afternoon over a cup of tea, all have similar ingredient caffeine. Caffeine has been consumed ever since the 2700 BC, with its conjunction in tea, for the Chinese Emperor Shen Nung. In 575 AD, the first use of coffee beans where in Africa where it was used as currency and food. Even more today, caffeine consumption has become an integral part of millions of people's daily lives. According to David Weaver, "Caffeine and theophylline are among the most widely consumed neuroactive substances