Sleep apnea also depresses nighttime production of growth hormone. 
I've been on a machine since January, and I've found it far easier to 
follow the proper lifestyle with it. So I don't think this is 
entirely off-topic.

With sleep apnea I found workouts to be fairly unfulfilling 
physically, and quite frustrating emotionally. The physical part is 
easy to understand when you learn just how much testosterone and 
growth hormone are supressed. Proper eating is now much easier as well.

You stopped taking the Vitamin A?

DF


>I was unaware that sleep apnea also causes testosterone reduction, and
>also unaware that I had severe sleep apnea, so looked around to see what I
>could find out.  As you'd expect, the bodybuilding web sites have a lot of
>info about testosterone boosting, and that's where I found the first
>suggestion that vitamin A (not beta carotene) supplementation could help.
>I started using cod liver oil *and* pure vitamin A supplements, which are
>dirt cheap anyway.  I was taking about 30,000 units a day.  About four
>months later I had my levels checked again and they had tripled.  And
>between then and now I haven't had a cold, a cough, a sniffle--nothing.