The most powerful biohacks on the planet don’t cost a dime, and most people have no idea they’re already within reach. In this rapid-fire Q&A, I’m answering your most Googled questions and breaking down my top five free, portable biohacks, my exact cold plunge protocol, and the truth about mold toxicity that most physicians won’t tell you. If you’ve been waiting for a no-excuse starting point to upgrade your biology, this is it.