Pages • 1
Caffeine Essay Preview: Caffeine Report this essay Caffeine, a odorless slightly bitter substance that is in most caffeinated beverages. Caffeine is present in about 4% of tea leaves and in coffee. Caffeine contains two other alkaloids, theobromine and theophylline. These two relax the muscles while the caffeine stimulates the heart and respiratory systems. The caffeine.
Related Essay Topics:
Caffeinated Soft DrinkCaffeine ConsumptionLower Caffeine ContentPeople Drink Coffee