Caffeine Side Effects: How Our Health Is Affected?

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Caffeine Side Effects.
Caffeine is a stimulant found in some plants, dating back to 2700 BC when the first tea in history was made. Coffee was discovered long afterward when an Ethiopian shepherd discovered that his animals became more active when they drank coffee. Today, nearly 80% of people in the world consume caffeinated beverages every day, and caffeine works by stimulating the nervous system and brain.