How true is it that one disadvantage of green tea is insomnia because of its caffeine content? You may put it as a “disadvantage” but people who works on a night shift will disagree. True, green tea contains caffeine but compared to coffee and other tea, it has a lesser level but has a very incredible amount of antioxidants.
What is caffeine?
It is a kind of drug that acts as a stimuli that basically stimulates the central nervous system and the heart. A person having caffeine in his system can instantly increase his blood pressure but not having any evidence of definitive long-term effects in the blood pressure itself. Long term increase of blood pressure are still taking excessive amounts of green tea.
