caffeine consumption

Caffeine is a natural stimulant commonly found in coffee, tea, chocolate, and some soft drinks. It works by blocking adenosine, a brain chemical that promotes sleep, leading to increased alertness and energy. Most adults can safely consume 200-400 milligrams of caffeine daily, roughly equivalent to 2-4 cups of coffee. While moderate intake can improve focus and mood, excessive consumption may cause side effects like anxiety, insomnia, and heart palpitations. Individual tolerance varies, so it’s important to listen to your body and adjust your intake accordingly.