Caffeine is a prevalent and much sought after ingredient of many drinks and foods, and is the reason why many are so faithful to their coffee pot in the kitchen or the vending machine in the break-room at work. Without that daily dose of caffeine, the day just doesn’t unfold as smoothly, and for some, it is completely ruined. Caffeine is considered safe in low to moderate doses by the FDA, but high amounts can entail unwanted effects, such as headaches.
Caffeine is a drug, a stimulant that affects the central nervous system, which in turn affects the heart, blood flow, and neurological processes. These inner physiological occurrences produce the effects that a person seeks when reaching for the coffee pot or putting a dollar in the vending machine: alertness, wakefulness, and boosted energy. Considered to be the positive side effects of caffeine, these properties move 80-90% of adults and children to consume caffeine habitually. But habitual use invokes caffeine’s more unpleasant effects, effects that threaten to irritate and discomfort any user who breaks his or her daily caffeine routine. These are withdrawal effects, and they include fatigue, irritability, and especially, headaches.
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