text:  Soon after a company opened up a Bitcoin mine there a couple years ago, locals started experiencing excruciating migraines, hearing loss, nausea, panic attacks, and more. Several folks even ended up in the emergency room. And the culprit behind these symptoms may surprise you. It's all the noise. For Time Magazine, technology correspondent Andrew Chow investigated the health crisis in Granbury. He joins me now. Andrew, welcome to Science Friday.