17. Get A Workout Buddy
Having a workout buddy is going to help serve you in two ways. First, you’ll be more likely to hit that PR when a spotter is around.
Knowing they’re there to save you can help you push that extra bit, which will in turn mean a greater testosterone release.
Second, simply knowing another person is watching you workout can help to elevate natural testosterone levels slightly higher than if you were working out all alone (in a home gym for instance).
Call it the male ego or simply the ancient desire to show what you’re made of – this feeling will have an influence on how much testosterone your body is producing.