Steroids can benefit athletes for a decade after use, and even if they adopt the method for shorter periods, it can help them for their entire careers, suggests new research.
According to the BBC, experiments with mice showed that a brief exposure to testosterone allowed the mice to rapidly regain muscle later in their lives.
The scientist behind the study says that if a similar effect can be shown in humans, it should lead to a lifetime ban for dopers, the report said.
Norwegian scientists had previously published work that showed the existence of a muscle memory, the report added.
This suggested that if people exercised when they were young, their muscles grew more easily when they exercised later in life, the report further said.