Google "circadian rhythm cognitive performance" and you will find loads of studies going back 40+ years. This is all well established. They run the same tests on people at different times of the day and compare the results.



[urlhttp://hstrial-jzadina.homestead.com/Rhythms_of_Mental_Performance_0_1_.pdf[/url



Nice graph on page 5 of the pdf (numbered 11 on the page) about alertness that would be relevant. I couldn't find a clear one on physical performance that didn't also involve travel, I guess because it is more difficult to do comparative tests hour by hour.

Yes, I know there is no meaningful evidence of any significant effect on performance levels in pro sport. Kind of my point.

You'll be fine over here FA they have one size fits all Budgie Smugglers!

but I have never tried them

Mrs Relic says I am at my physical peak in the mornings cannot get more definite evidence than that

Meh, I reckon she's just another of them Bradford glory hunters

So I take it from this you do not believe alertness, speed of thought, or decision making effect a teams chances of winning a game? It is only physical fitness that matters? There is plenty of evidence in the links that cognitive function varies depending on the time of day.



Anyway the original point was this, your incredulity that a flight to Toronto would have any impact on a persons body clock.



It does.



The answer to the "What's the story morning glory?" question is in there too...