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!

Get boosting!