SUGAR: Affects the body's testosterone production, making it tougher to have an erection.
INADEQUATE SLEEP: Sleep is important for testosterone production.
ALCOHOL: Alcohol lowers your testosterone levels.
RUNNING TOO MUCH: Running 4O or more miles a week can drop your testosterone level by 17% according to a University of British Columbia study.
SPENDING TOO MUCH TIME INDOORS: Vitamin D production in the body is important in the production of testosterone. Being exposed to the sun. About 15-20 minutes three days per week is is a good source of vitamin D.
SOY: Some research shows that regularly eating soy products like tofu, soy milk and miso may cause a drop in testosterone levels.