A very interesting study has come up indicating that exposure to bright light may increase testosterone production in both men and women. Though the findings are not yet clear, it is quite possible that at some later stage light therapy could be used to enhance libido and other problems associated with a drop in testosterone levels.

Here is the link to the origianl article: Bright Light May Boost Testosterone

I think it should be a great idea to get out in the sun and absorb some sun light if you want greater sexual appetite.

Another solution to boost libido and testosterone in men is with Natural supplements like Provacyl.