According to the AP yesterday, the Houston Texans asked the NFL to reduce or rescind the suspension given to linebacker Brian Cushing claiming something called overtrained athlete syndrome.
Cushing said the syndrome can trigger hormonal spikes after breaks in training. This was his explanation for why he tested positive for a fertility drug last September. He says he never took the drug.
I can see the ads for your local gym/health center now.
Get fit and be ready for the romance afterward. But see a doctor if it lasts longer than four hours.