A recent study by the Austrian Medical University of Graz found that sun exposure boosts testosterone levels in men.
Sunlight is responsible for 90% of the body’s supply of Vitamin D, which can be absorbed in smaller amounts through vitamins, meat, and oily fish. Graz researchers discovered that as Vitamin D increases, so does testosterone.
Testosterone is the primary sex hormone for men, appearing at frequencies of forty to sixty times that of females. It controls a number of functions in men’s health, including muscle growth, bone density, linear growth, the development of secondary sex characteristics, mental and physical energy, libido, and erectile function.
This article appears in Jan 27 – Feb 2, 2010.