I have a three to four cup a day coffee habit, not uncommon among those of us who spend most of the workday at a desk, pecking at a keyboard for a living. Americans consume the equivalent of 500 cups per person - per year and import half of the worlds coffee crop. Caffeine is the world's most widely used central nervous system stimulant, with approximately 80% consumed in the form of coffee.
A strong cup of coffee is not just for staying awake. Coffee accelerates the heart, increases blood flow, and encourages breathing. Coffee contains theobromine and theophylline, which help to expand the airways and inhibit bronchospasms. It will settle a dizzy spell.