The Science of Caffeine: How It Works in Your Body
Caffeine works by blocking adenosine receptors in your brain, preventing the usual inhibitory signals that cause drowsiness. This boosts neuronal activity and elevates dopamine and norepinephrine levels, enhancing alertness and cognitive function. It’s metabolized mainly in the liver with effects lasting three to five hours, though this varies individually. While it improves focus, caffeine can…