I've been reading messages about these two substances for about a year now on this list. I have experienced increased fatigue/decreassed energy recently and think it's time I tried one or both. I have been trying to work part-time and fine the loss of stamina a problem. Can anyone give me the quick bottom line? Which should I try first? How much does each cost and where's the best place to get them. The last message I read on one of these was 10/22 from Milo Anderson on DHEA, in which he suggests a blood test to determine levels before taking. The same for NADH? Also, what do the letters in each stand for? I have an appointment on 11/1 at the VA Hospital, where I get my drugs. I kind of doubt they'd provide this kind of thing, but it's worth a try. Think I should give them the long names. They do provide some of my vitamins. Thanks. I really appreciate you folks. B. Bruce Anderson (50,2yrs)