Caffeine offers a quick burst of energy, especially when one is already feeling fatigued. Over time, caffeine can become a crutch that lets one bypass the reasons for their malaise rather than dealing with the underlying cause. When the person quits suddenly, lethargic and sleepiness may follow, because the body has developed a dependence on caffeine. All that waylaid tiredness may suddenly collapse on the individual. Caffeinated beverages with a lot of sugar exacerbate this issue, because the body is suddenly without both caffeine and sugar.

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