My fate, and probably for most of us here will be same as Burly's I'm afraid.
There is this Jack Kruse who has some strange and some good ideas as well- one of his better ideas (IMO) ideas is to live life as closest to life of our ancestors, he has point there but for most of us thats impossible.
Anyway- some researchers have said that till modern times men had double TT levels compared to men today.
Their lifestyle was completely different- in summer they were exposed to sun (natural vitamin D), in winter they ate lot of stored nutty products. Lot of good stuff in diet. Lot of rest. Interestingly- in Europe because of "industralisation" poor diet, hard labour and not enough rest- average height has been reduced by inch or so in last 200 years. That speaks for itself.