Five years ago, against practically anyone’s better judgment, I knowingly abandoned any semblance of medical evidence to follow the bizarre-sounding health advice of strangers on the internet. The treatment was extreme, expensive, and potentially dangerous. If that sounds like a terrible idea to you, imagine how it must have felt to a science journalist like me, trained to value evidence above all. A decade ago, I never would have believed I’d do such a lunatic thing. If it helped me, it could help other people—provided they take the proper precautions.