Start by drinking one cup of green tea in between each cup of coffee, you'll cut down without having to give it up cold turkey...
I never drink coffee because I am allergic to caffeine. caffeine makes my heart beat too fast and make it hard to breathe, therefore I never drinkcoffee try to reduce the 20 cups of coffee a day because it's too much might now no side effects but as we get older the effect will be there
I don't drink Cwoffee but I do drink fruit tea and have about three per day whilst working at the comp, only managed to spill one on the keyboard thus far though!