As they say, west is best.....
My worse moments have always been when i fly eastwards. I had a trip to Japan that ended up in the hospital emergency due to sleep deprivation... They had to find a Portuguese interpreter for me, as this was the only language i could speak at that moment (indeed it is the only language i can speak at all moments, but normally i can make others believe that i can _also_ speak others...). I also have a sleep disorder that doesn't help much....

Not sleeping is worse than not eating.... and yet we each generation of this part of the world is fatter and sleep less than the previous.