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Caffeine is the most widely used psychoactive drug in the world, consumed by billions of people every day in the form of tea, coffee, and energy drinks. It is commonly consumed to boost alertness and ...

If you rely on a cup of coffee to jolt you awake in the morning or get you through an afternoon slump, you’re not alone. Four out of every five adults consume caffeine daily. Your caffeine intake ...

Caffeine is a common feature of many sodas, coffee, and food products. It’s a drug that is made naturally in the leaves and seeds of many plants and gives an energy boost when consumed. But how long ...