TESTOSTERONE: A primer

Read this exclusive extract from my new book to get a better understanding of the subtleties of testosterone and its effects on the human body

I write a lot about testosterone, the master male hormone. Testosterone levels are falling at an unprecedented rate, and it’s having a wide variety of effects at a civilisational level, reducing fertility and altering social and political behaviour. Men simply aren’t men today in the way that they were even a generation ago. Of course, saying this is co…