Caffiene and it's effects on the human body...

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Overuse In large amounts, and especially over extended periods of time, caffeine can lead to a condition known as "caffeinism." Caffeinism usually combines "caffeine dependency" with a wide range of unpleasant physical and mental conditions including nervousness, irritability, anxiety, tremulousness, muscle twitching (hyperreflexia), insomnia, headaches, respiratory alkalosis[51] and heart palpitations. Furthermore, because caffeine increases the production of stomach acid, high usage over time can lead to peptic ulcers, erosive esophagitis, and gastroesophageal reflux disease. However, since both "regular" and decaffeinated coffees have been shown to stimulate the gastric mucosa and increase stomach acid secretion, caffeine is probably not the sole component of coffee responsible. There are four caffeine-induced psychiatric disorders recognized by the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition: caffeine intoxication, caffeine-induced anxiety disorder, caffeine-induced sleep disorder, and caffeine-related disorder not otherwise specified. Other side effects of caffeine overuse include: dizziness, fast heartbeat, blurred vision, drowsiness, dry mouth, flushed dry skin, increased urination, loss of appetite, nausea and stomachaches. It also has effects on memory and learning, Parkinson's disease, Effects on baldness, and Effects on the heart. Did you know that caffiene could be so bad. It will kind of make you think twice about having that cup of coffee.