The primary source of caffeine for many people is coffee. This popular beverage is made from roasted coffee beans, which naturally contain caffeine, a stimulant known for its ability to enhance alertness and boost energy levels. Many individuals rely on their morning cup of coffee as a wakefulness aid and as a part of their daily routine. Beyond coffee, other common sources of caffeine include tea, energy drinks, and chocolate. Research indicates that moderate caffeine consumption can have both positive and negative health effects, but it remains a cornerstone of daily life for countless people seeking a mental and physical boost.