http://www.webmd.com/men/features/exercise-and-testosterone testosterone WebMD increases in response to exercise increases in response to exercise induces increases in response to exercise increases in response to exercise increases in response to exercise testosterone increase in testosterone http://www.webmd.com/men/features/exercise-and-testosterone boost testosterone to the muscle building hormones boost the testosterone level testosterone is increased after working out increase in testosterone highest in the morning this article induces increases in response to exercise http://www.webmd.com/men/features/exercise-and-testosterone WebMD Does Working Out Affect Testosterone Levels? - WebMD