UPDATE:
1) last Saturday (August 22nd), was night 32 (6 days@ 10 mg., 25 days @ 20 mg.). I went up to 30 mg.
2) Research shows that 10 mg. of melatonin produces strong somatostatin inhibition. This makes much more sense than huperzine pre- bed to me. I added the 10 mg. Melatonin pre-bed with my Gharine last night (TUE., August 25th--4 days @ 30 mg.).
3) I had a zombie like sleep: very deep and rejuvenating! This is the deepest sleep I've had on the Gharine.
4) improved mood, focus, energy, "permanent-pumps", hard muscles, vascularity, and improved recovery continue.
5) lethargy has all but disappeared, but I still get sleepy sometimes at unexpected times.
I honestly consider this to now be a staple supplement for me and I'm looking forward to more long-term benefits/effects (tendon, joint, etc.). The fact that IGF-1 levels continue to rise for at least a straight year is BIG: IGF-1 is associated with increased insulin sensitivity and protein synthesis.
Concerning insulin sensitivity, one study I looked at showed an average increase in fasting glucose from 25mg./night to be 5 mg./DL after 1 year, as well as "decreased insulin sensitivity" ( although the degree of decreased insulin sensitivity was not specified). However, you have to remember this was in an older population not manipulating their diet or weight training. Over time, in fact, the decrease in fat mass and increase in LBM. very likely would out-weigh any adverse effect on insulin sensitivity and fasting glucose levels.