Effects Of Caffeine On The Body Metabolism - 2013 Words

Caffeine is one of the most prevalent drugs consumed around the world, and is frequently used by athletes in efforts to enhance their performance. It is defined by the Medical Dictionary as â€Å"A bitter white alkaloid, C8H10N4O2 that stimulates the central nervous system and body metabolism† (2010). Some believe that increasing their caffeine intake will then improve their energy and endurance levels during long-term sporting events such as running, biking, or swimming. Caffeine is found in an assortment of foods and drinks including but not limited to coffee, tea, cokes and cola products, chocolate and energy drinks. Caffeine can also be found in some over-the-counter medications. In a recent research study produced by the Kinesiology Department of Delaware University, the following findings were presented: that caffeine is a vasoconstrictor and stimulant; caffeine can increase blood pressure by contracting the heart and blood vessels in non-habitual users; caffeine changes the electro-physiological activity of the heart, increasing conductivity, even in limited doses (University of Delaware). In regards to the gastrointestinal side effects, the UD study wrote that caffeine stimulates gastric secretion, stating that some individuals are sensitive to caffeine and suffer ill effects such as acid indigestion, heartburn, abdominal pain, gas or constipation to varying degrees. In addition, caffeine inhibits vasopressin, and it acts as a powerful diuretic. Liver metabolism isShow MoreRelatedThe Effect Of Caffeine On Caffeine And Endurance Performance773 Words   |  4 Pagesliterature review, I will be analysing the literature on Caffeine Ingestion and Endurance Pe rformance. Endurance performance according to Farlex, 2003, ‘is a performance where key muscles are exercised at submaximal intensity for prolonged periods of time’, without the onset of fatigue. Caffeine is a, stimulant which affects the central nervous system (CNS) (Farlex, 2003) and it has also been found to increase the fat oxidation and metabolism of free fatty acids, FFA, (Essig, Costill, and Van HandelRead MoreEnergy Drinks Speech923 Words   |  4 Pagesin regards to they speed up your metabolism, help you with your workout, mixing these drinks with alcohol, and the effects on your body. II. BODY OF THE SPEECH D. Energy drinks speed up your metabolism. 1. A 16 oz. can energy drink may contain 13 teaspoons of sugar and the same amount of caffeine found in 4 or more colas. 2. 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