Coffee and Sleep
摘要
Coffee is the most popular beverage globally, following only water, and is the leading stimulant worldwide. Its primary active ingredient, caffeine, plays a central role in its effects and is found in a wide range of other products. Beyond coffee, caffeine is present in various beverages, foods, and medications, highlighting its extensive use and impact on daily life. This broad presence underscores the significance of caffeine in both consumer habits and health considerations.