[starkd]

Thanks for this. Now it makes more sense. Interesting that the caff/caff and plac/plac group have levels that are identical for all four measures. As you may have noticed, coffee prices are through the roof now. I've been a heavy coffee drinker for most of my life, so I recently decided to confine it to just one cup in the morning. I'm becoming convinced that the feeling of more energy and wakefulness that caffeine brings is just an illusion. It only last for 10-15 minutes at best but thereafter leaves you feeling depleted and vacant. Also, for the addicted user, that good 10-15 minutes is only a period of relief from feeding the dependence.