Today over lunch we were discussing caffeine. One person from our office has been caffeine-free for about 2 months now and says it’s great. This person used to be a barista and used to have a headache before 10 am if he didn’t get any coffee. He was obviously addicted. On the other hand, I don’t notice it. One time a co worker and I downed 8 shots of espresso at 4 pm. I slept great that night and my friend came in the next day exhausted because he couldn’t sleep. How does espresso affect you and do you purposefully avoid it in the evenings?