THis stuff really works. I'm a pharmacist who works 3rd shift 10pm to 8 am. 7 days on then 7 off. Here is what a typical day consists of..work 10 hrs, drive home (1 -1.5 hrs) Play with the kids, do housework until noon, then I take a 2-4 hr nap, eat dinner, put kids down to sleep then repeat. I keep this schedule even in my off time, substituting working in my workshop for my night work. I have no trouble concentrating and as I am typing this I have only slept 1.5 hours today. You all are correct in that timing is everything. you must keep a steady schedule. Also I have been doing this for over 2 years now with no adverse effects. However, Every 2 months my body signals me that I need an ad lib day by giving me a headache to which I respond by Sleeping ~10 hrs. and then I'm good to go for another 2 months. I would like to hear if anyone else has had any success with this as my friends keep telling me that this is not healthy and I'm going to crash into a major mental meltdown.
