MediNat Australia

Exercise may cause you to fail drug test Darren Osborne ABC I f you smoke cannabis and then exercise the next day, be warned - you could fail a random drug test. That's the finding from a team of Australian researchers looking at the long-lasting effect of the active component in cannabis, known as tetrahydrocannabinol (THC). THC is a lipophilic compound, meaning it dissolves in fat molecules. Previous studies have shown that it can be stored in the body for at least 28 days, with some former heavy cannabis users still showing traces of THC in their body six months later. Professor Iain McGregor, from the University of Sydney's School of Psychology , says he was prompted into studying the long-lasting effects of THC after hearing numerous cases of people claiming not to have recently used cannabis, yet had high levels of the active compound in their urine or blood. "The common dominator in all these scenarios was that the people were burning fat,"