Bob, you are spot on. My intention was not to provide an overview of every potential risk-reducing maneuver. I have written a lot about short (or excessive, we mustn’t forget) sleep on health and longevity. For example — https://medium.com/beingwell/you-may-live-longer-if-you-optimize-your-sleep-hygiene-db142c816674?sk=777bf921037a16fd4647d4d8db8970c1