I’m 37. Born “disabled”. Just started TRT at end of December after being deficient my whole life. (Never knew this.) Been going at it hard 3 months. Doctors told me my whole life it was impossible to build muscle with my arms the way they are. But I refused to listen to that anymore. If the arms break they break but so far so good. I’ve achieved more than I ever thought I would. Started with just a 17lb bar and am now up to 34lbs. Things are taking shape at least! Let’s see in another 3-6 months!