Libido is a term that refers to your sex drive or sexual desire. In men, sex drive is primarily controlled by testosterone. The main source that controls libido in women is not so easily identifiable, making female sexual desire more vulnerable to fluctuation. When it comes to changes in the libido, experts often point to intimacy issues, mood and physical health. While few foods can provide an instant turn-on, a diet high in fish and seafood could have a positive impact on your sex drive. Adding more seafood to the diet could help get couples' sex lives, and even their fertility , back in the swim of things, new research shows. The study couldn't prove cause and effect, but couples who ate more fish each week were more likely to conceive children during the year of the study. "Our study suggests seafood can have many reproductive benefits, including shorter time to pregnancy and more frequent sexual activity," said study author Audrey ...