Caffeine Withdrawal and ADHD

The Last Psychiatrist has a very interesting piece about caffeine withdrawal. He details his own experience of withdrawing from caffeine, symptoms of which he had mistaken for an illness. He closes with the following:

Has anyone else wondered if the prevalence of ADHD doesn't parallel caffeine use and sleep deprivation, especially in kids (kids don't take naps anymore)? And that the main treatments are-- stimulants?

Interesting...