Exercise especially weight training increases your bodies production of Testosterone which is most likely why you feel hornier than normal.

I had a question on my forums that's quite interesting and might have some crossover with this.

Basically, the question was that of uncertain love. People being in normally absolutely loving relationships occasionally have sudden drops in affection or feeling. A sudden questioning of whether they love the other person. This feeling would only last a brief time and pass though.

Could this be an opposite phenomenon to this one? A misattribution of negative arousal perhaps?

I'm only hypothesizing here, the uncertain love/sudden drop in emotion thing is something I've questioned for a long time but never actually come close to having an explanation for, this is the closest and most interesting idea I've had regarding it.

Thoughts?