I'm out of coffee this morning and very irritable because of it, so it's hard not to think of this study from AEI:
Is Caffeine Addictive? A Review of the Literature, by Sally Satel, M.D., AEI Economic Policy Studies: Abstract The common-sense use of the term addiction is that regular consumption is irresistible and that it creates problems. Caffeine use does not fit this profile. Its intake does no harm to the individual or to society, and its users are not compelled to consume it. Though cessation of regular use may result in symptoms such as headache and lethargy, these are easily and reliably reversed by ingestion of caffeine. Some have argued that continued caffeine use is an attempt to suppress low grade withdrawal symptoms such as sleepiness and lethargy. In some moderate users, this is possible; however, in experimental contexts, the phenomenon is too inconsistent to constitute a reliably valid syndrome.
I might not be compelled to consume it, but I'm throwing on some clothes, putting on a hat to hide bed hair, and heading to the nearest coffee dealer.
Uh-oh. I just realized blogging came before coffee. Good thing that's not addictive either.