The caffeine in coffee can effect people in different ways, particularly depending on your size, gender and metabolism.
Coffee Nerves
Everything Old blog features a fantastic vintage commercial for a caffeine-free drink. Amazing that people were wise to negative effects of coffee 50 years ago, yet nobody really thinks about it now… Are you often cranky, irritable – easily upset?… While many folks can stand caffein, others suffer sleeplessness, nervousness, indigestion.