Everything you need to know about testosterone replacement therapy (TRT) Is testosterone replacement therapy (TRT) right for you? We describe how TRT works, as well as its potential risks and benefits of TRT. Read More 7 signs you could have low testosterone Low testosterone can affect men of any age, but do you know the main signs of low testosterone? Read More Testosterone to Cortisol - the all important ratio Doctor Daniel Grant explains why knowing the testosterone to cortisol ratio (T:C) marker could optimise training and performance for elite athletes who track and trend their blood results. Read More Can a ketogenic diet improve your testosterone levels? Dr Emil Hodzovic explains more about the theory behind how a ketogenic diet may affect testosterone levels. Read More 1 2