You don't need medicinal science, you need exercise. Hughes, et al, recorded an average 27.4% increase in testosterone levels in six male subjects immediately after the men finished 30 minutes of treadmill running. Although it was previously thought that exercising at a high intensity was necessary for increased testosterone production, test subjects exercised at only 80% of their VO2 max.
As researchers reported in the Journal of Strength and Conditioning Research, rises in serum testosterone concentrations occurred 20 minutes into exercise (20.7%), 10 minutes postexercise (25.7%) and 20 minutes postexercise (21.6%). But if you're looking for an increased libido, don't wait too long. The subjects' serum testosterone returned to baseline levels at 30 minutes postexercise.
taken from muscleandfitness.com
As researchers reported in the Journal of Strength and Conditioning Research, rises in serum testosterone concentrations occurred 20 minutes into exercise (20.7%), 10 minutes postexercise (25.7%) and 20 minutes postexercise (21.6%). But if you're looking for an increased libido, don't wait too long. The subjects' serum testosterone returned to baseline levels at 30 minutes postexercise.
taken from muscleandfitness.com