What is Caffeine
Caffeine is present in coffee, tea, maté, cola nuts, and guarana plants, roughly to an extent of 4%. Caffeine stimulates the heart and respiratory systems while another alkaloid, theobromine (also found in tea) relaxes the smooth muscles.
Nowadays, caffeine is a common ingredient in several of the products we consume daily – from coffee and colas to chocolates and energy drinks. Scientists opine that caffeine in limited amounts is okay. But there is a flipside too – its psychoactive stimulant properties can lead to caffeine addiction which is as detrimental to health as other addictions can be.