Emboldened by US Health Secretary Robert F Kennedy Jr's libertarian "Make America Healthy Again" agenda, the pseudoscience of 'biohacking' is having a moment. Proponents spruik a range of expensive hi-tech health treatments that promise to increase human longevity: from cryo chambers, to sauna suits, filtered urine treatments and microdosing on snake venom. Journalist Will Bahr went to a conference in Texas to try a few treatments for himself. 

• Guest: Will Bahr, freelance journalist for WIRED Magazine