Many people's idea of starting the morning is a cup of tea. It looks innocuous enough but wait until you miss it. Nerves become frayed and some become prickly. For my case, I rarely take anything else during the day apart for a cup of tea with scones as an accompaniment. So caffeine addiction tugs along with it addiction to sugar and high sugar release foods. An occasional absence of caffeine results in a quick fix and some people pick up nicotine addiction as well.