A ‘Grueling and Grotesque’ Biohacking Experiment (2018) Emily Buder. Save a click: Man eats feces and develops a sweet tooth. We discussed eating shit (as a form of biohacking) with Mia Mäkelä in 2015. She speculated that stock traders, corporate leaders, business angels etc. are already investigating how to alter their internal fauna, so that it would aid them in reducing stress etc.