Forget virility drugs and aphrodisiacs. All you need is some sunshine. According to a recent study vitamin D created in the human body by exposure to the sun's rays are essential for a high sex drive. Vitamin D is often referred to as the sunshine vitamin because it can be synthesized by the human body. Men wishing to acquire a higher sex drive can benefit by exposing their body to the sun's rays as a study by Austrian scientists has found sunshine increases level of male sex hormone testosterone.According to the study at the Medical University of Graz Austria men