I'm 61 years old and in moderately good health. A lot of people say that I don't look a day over 45. I have slept no more than 5 hours a day, on more than 90% if the days, over the last 45 years. I usually sleep about 3 hours at night (actually, early morning, I work in a bar) and get in a 90 minute nap before going to work. Alert and active daily from 9AM till 7PM and work from 10PM till 4AM. Rinse and repeat. Had similar sleeping patterns over 30 years while I worked a 9-5. My father used to work 2 full time jobs and slept about 3 hours per night. Would leave for work at 5:30AM and come home at 12:30AM, the next day. Made ice cream in the morning and ran an overhead crane in a foundry evenings. Did it for 23 years. I'd bet DEC2 is capable of being passed on. Dad lived to be 93. Hope I have that gene too. Wonder if they'd like a DNA sample.