1. Hit the gym
The more body fat men gain, the lower their testosterone levels fall, according to a study undertaken at Cornwell University.
2. Drive a fast car
After 39 young men got to drive around a track in Porsche 911 Carrera at Concordia University, every single one showed a significant increase in testosterone.
3. Rest up
Your testosterone levels can plunge by up to 40% if you don’t allow your body to recuperate adequately between training sessions, as shown by research from the University of North Carolina.
4. Sexy women
The sight of a sexual image is enough to flood the body with testosterone, although this research comes Leuven University in Belgium, the home of Stella Artois, so there may be some confusion!