Read our Privacy notice"Don't Die" biohacker Bryan Johnson has revealed the astounding daily routine of his girlfriend, Kate Tolo, who's compiling what he says will be the most exhaustive collection of data on the female menstrual cycle. And even while in bed at night, Tolo is being monitored by a sleep ring and what Johnson, a multimillionaire entrepreneur, called a "techno tampon." "Kate will provide the most comprehensive data set on a female menstrual cycle in history." On social media, Johnson, 48, said Tolo was "collecting 14 million data points on her menstrual cycle" and was being monitored by a 12-person medical team. "This will be the most quantified menstrual cycle ever.