Caffeine
When taken in small amounts caffeine is harmless, it's even considered beneficial; although, when taken excessively or in large doses for an extended period of time it has been proven to be detrimental. 2.Decaffinating to make artificial sourcesCaffeine is the most widely used drug in America. It operates using the same mechanisms that amphetamines, cocaine, and heroin use to stimulate the brain, but the effects are milder. When taken in small amounts caffeine is harmless, it's even considered beneficial; although, when taken excessively or in large doses for an extended period of time it has been proven to be detrimental (Perry 45-54). Caffeine has been used for thousands of years in many different parts of the world. It is a nitrogenous organic compound of the alkaloid group; it is odorless and tasteless. Trimethylxanthine, pure caffeine, occurs as a white crystalline powder or as silky needles ("Caffeine" 720). Caffeine is classified as a stimulant; it starts working after fifteen t
With caffeine's stimulating effect, it leads people to be dependant and later addicted (Price21-26). The average adult should only have 300mg of caffeine per day. With the average adult not needing over 300mg per day, tea contains only 80mg (depending on strength) per 12- ounce cup. However, some adults are more sensitive than others and the least bit of caffeine can cause negative side effects (Perry 52). Coffee is derived from the beans of the coffee tree. Also, for women who are taking in too much caffeine, it has been linked with infertility, and if pregnant, a greater chance of miscarrying. The ideal amount of caffeine for adults is 300mg and under that for children. The side effects all depend on whether you are overdosing on caffeine or not. Caffeine can make your blood vessels smaller, which makes it harder for your body to pump blood, so your heart beats faster (Price 22), the pupils dilate, breathing tubes open, blood flow increases to cuts and muscles, blood flow to the stomach slows, and a person's muscles tighten (Online 3). Some studies have shown that coffee can increase the chance of cancer (DeBenedette 8-10). The four most common are tealeaves, coffee beans, chocolate, and cola nuts. After a while, a person begins to form a tolerance for the drug and then it takes an additional amount to get the same benefits revealed with the initial use. The negative effects include: nervousness, anxiety, irritability, jitters, headaches, and insomnia ("caffeine" 720), which may explain many adults compulsion. In everyday life, caffeine is consumed through drinks, candy, high-energy products, aspirin products, cold medicines, diet pills, and some prescription drugs contain caffeine (DeBenedette 5-12). Chocolate is one of the most popular forms of caffeine among young people.
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