Cort Johnson gets credit for bringing this to my attention on his Health Rising website. http://www.painfreesleep.ca/tiredness-test?&cid=semeOyQHbZq "Canadian Tiredness Test Did you have a bad night’s sleep last night? Are you feeling tired and not at your best? Take The Canadian Tiredness Test to find out just how alert you are!" I realize from years of experience that "tiredness" doesn't come close to describing what people with ME experience. Nevertheless, the test was a fun exercise with interesting results. Here are mine -- test done after fully awake, but before much done to deplete my energy: "time for some serious snoozing Sounds like you got a terrible sleep last night. test duration: 1 minute, 39 seconds false starts: 0 (reaction time quicker than 100 milliseconds) signals missed: 5 (reaction time slower than 500 milliseconds) average reaction time: 419 milliseconds (on average, 220 milliseconds would be a 'good' reaction time)" Anyone out there interested in taking the challenge?