Anonymous man working out in the gym
Media playback is unsupported on your device

Increase in young men taking higher doses of steroids

10 July 2012 Last updated at 12:34 BST

A growing number of young men are taking high levels of steroids, risking serious damage to their health.

Liverpool John Moores University surveyed bodybuilders and found that people in their teens and twenties are taking doses five or six times the levels they were 10 years ago.

5 liveBreakfast spoke to 'Jack' from Northampton, 23, who started taking them when he was 19.

To listen to other Radio 5 live interviews, please visit the Best Bits page.