In the era of TikTok doctors, YouTube “biohackers,” and fitness influencers built like they were handcrafted by Zeus, testosterone has become one of the most myth-filled topics in men’s health. A quick scroll online can leave men confused, worried, or with expectations that belong in a Marvel movie. As a local men’s health provider in Eugene and Salem, I spend a lot of time helping men sort fact from fiction. Here are some of the biggest testosterone myths circulating online