There is a great vary variation of caffine sensitivity, and this is genetic tat. Some people are relatively insensitive to the stimulant effect of caten, and some people are very sensitive to it. I know people who can drink one cup of coffee in the morning and have no idea that that's the cause of their ensomda at night. i'm also a big fan of chocolate. And on my anti inflammatory food pyramid, i put dark chocolate at the top.