How gymgoers are unknowingly pumping themselves full of steroids with trend for testosterone – and doctors say it could be deadly

Testosterone levels typically decrease with age, with some men in their 40s and 50s getting supplements to boost their mood, energy levels and libido.Testosterone levels typically decrease with age, with some men in their 40s and 50s getting supplements to boost their mood, energy levels and libido.Read MoreHealth News | Mail Online