The Trump administration's decision to screen U.S. military personnel for testosterone deficiency has renewed debate about the hormone's role in health and performance. The move also reflects wider discussions in the United States and beyond about masculinity and the influence of "low T" narratives in politics and popular culture. 

This McGill expert is available to comment: 

Jonathan Jarry, Science Communicator, Office for Science and Society, McGill University, can speak about the history of testosterone therapy, the rise of "low T" culture, the growing popularity of testosterone replacement therapy (TRT) and the evidence behind claims that testosterone can reverse aging or dramatically improve performance. In a recent article, he examined how influencers, podcasters and supplement marketers have helped transform testosterone from a medical treatment into a cultural phenomenon. 

jonathan.jarry [at] mcgill.ca  (English, French)