Caffeine Addiction Essay

1575 Words 7 Pages
Millions of Americans begin each day by consuming the most widely used drug in the United States: Caffeine. Over 90% of United States adults consume caffeinated food or beverages on a daily basis and over 50% take more than the recommended amount. Our innocent daily ritual can turn into an addiction for some because many do not realize that caffeine is even a drug let alone the effects it can have on their bodies. Its use it becoming more and more prominent in our society. It’s not uncommon to walk outside and see a Starbucks or coffee shop on each corner. Innovative foods are coming out infused with coffee, and energy drinks are being pushed at every angle. Caffeine to many is a necessity to wake up in the morning and for others to stay …show more content…
In higher doses it can lead to dependency, and even death.

Caffeine enters the body through ingestion. Caffeine is normally found in coffee, tea, sodas and chocolates. However, caffeine supplements are also available in pill form. Once caffeine is consumed it is absorbed into the body through the stomachs lining and circulated in the bloodstream. Its effects usually take place within an hour of being used but factors such as age, weight, and other drugs can alter its results. Once absorbed it becomes dispersed throughout the body mainly affecting the brain stem, which unites with the central nervous system. Once caffeine reaches the brain it begins connecting to the adenosine receptors in the basal forebrain. Caffeine is part of the xanthine chemical group much like the naturally occurring adenosine in the brain. Adenosine works by connecting with receptors, which in turn causes the body to sleep. When caffeine is taken the brain confuses it with adenosine and it binds with the sleep receptors rather than adenosine. This makes adenosine unable to bind with its receptors inhibiting sleep and

causing the body to produce more adrenaline. Increased adrenaline causes alertness; higher heart beat, and dilated pupils. The half-life of caffeine is on average 6 hours, once the body metabolizes the caffeine through the liver. This is why it is important to limit your consumption of caffeine after noon because even after the initial

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