The "stiffies" are not purported to result from nitric oxide production (like Viagra/yohimbe) but from transient rises in test levels.
I may be wrong, but isn't it the case that testosterone mediates erection through the production of NO?
man im away at a softball tourny for my daughter for a few days and i miss all the talk. anyway what i notice from taking the trib in the a.m is a definate RISE(lol) in my labido. An yes it seems the a.m has been more prominent lately for me and the wifey...
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LOL - there's our boy, getting in on the AM action!
What time of day do you train, Hoop?