Why woman's sex drive declines and a man's stays as strong as ever

First of all I want to wish my dear readers a Happy Valentine Day. I hope you have more fun with your beloved on this day and whole 2012…..



 



Now let use see why woman's sex drives declines and a man's stays as strong as ever….



 




A happy, healthy relationship and sex life are all very well, but when it comes to measuring a woman's sexual desire, all scientists really need to know