ADHD and the lot linked to circadian rhythms...

I suspect that a number of disorders will be shown to have roots in messed up circadian rhythms, but it will be years...definately depression and its variants as one of them. The reason why short term rem sleep deprivation has an almost miraculous cure rate for even those with major clinical depression. And I realize it becomes a chicken or the egg scenario, as there usually isn't documentation of biochemical changes in individuals prior to the onset of their depression. It's somewhat akin to whether or not people lose their motivation because they're depressed or because they have no motivation do they become depressed.

It took a decade for doctors to accept that most peptic ulcers (up to 90%) are caused by a bacterium (Helicobacter pylori), and can be treated with a course of antibiotics... I hope it doesn't take that long for them to accept that we are driven by our biological rhythms-- it's one of those things that is so glaringly obvious and simple that it becomes hard to see.

Sidenote : The US military actually did an interesting project with an isolated northern Alaskan base (during the winter night). Instead of using a propper 24 hour clock they used a clock that was actually 25 hours long and marked as 24. Thus after 24 days one day had shifted.

They found that average performance increased slightly with early morning and late evening showing the most significant improvement.

Thoughts?