Coffee and Caffeine FAQ

I only have a couple of neuroscience classes under my belt, but my medical advice is as such:

It's not possible to be experienceing caffeine withdrawals after four years. When you're addicted to caffeine, your body increases response to the adenosine receptor sites in the brain and thus has a increased response to adenosine, a neurotransmitter responsible for feelings of calm and tired. Caffeine is an adenosine aganonist, meaning it blocks up the receptor sites in the brain recepetive to adenosine. When your not on caffeine, those receptor sites fill up with adenosine, and due to their increased sensitivity, you experience withdrawal. Over time, clinacally claimed as 5-7 days, the adenosine sites return to normal. The cease to be hypersensitive and your withdrawal symptoms will subside.