The biohacking community embraces methods that vary widely. Some focus on very precise tweaks to their diet, sleep and exercise, while others turn to technology, embracing treatments such as red light therapy and hyperbaric oxygen therapy. A typical day for 43-year-old entrepreneur Nicholas Lin begins when he wakes up fresh and clear-headed after the seven hours of uninterrupted sleep he makes sure he gets each night. Breakfast is washed down by a ritual stack of 34 supplements he takes