I am not a day trader, but I am relatively active. I can go one week with 0 trades and then the next week do 40-50. I transitioned over to Schwab's Thinkorswim platform this summer and was happy to see I could trade at 4:00AM, but then I discovered you can do 24-hour trading as well.
So the question is really in the title; how the heck do you day traders fight the urge to watch things during Asian market trading and then be glued to a computer all day?