A urologist who treats men with low testosterone every day checked his own levels when he suspected he had the condition and found them within the normal range. "Turns out it was more so my sleep and stress and everything else," Dr. Jamin Brahmbhatt of Orlando Health told NPR.
That anecdote sits at the center of a diagnostic problem now reaching millions of American men through social media and online prescribing. The symptoms most commonly attributed to low testosterone are among the least specific in medicine, and treating them as proof of a hormone deficiency skips the step that determines whether hormone therapy is the right answer at all.