Being able to biohack your physiology through multiple new technologies and a better understanding of old diagnostic studies is making us learn how to improve our bodies at a rate never seen before. There are plenty of n=1 experiments on health out there some online celebrity examples are Tim Ferriss of 4 Hour Body fame and Dave Asprey of Bulletproof Coffee fame.
As quoted in Wikipedia under Quantified Self:
The Quantified Self is a movement to incorporate technology into data acquisition on aspects of a person’s daily life in terms of inputs (e.g. food consumed, quality of surrounding air), states (e.g. mood, arousal, blood oxygen levels), and performance (mental and physical). Such self-monitoring and self-sensing, which combines wearable sensors (EEG, ECG, video, etc.) and wearable computing, is also known as lifelogging. Other names for using self-tracking data to improve daily functioning are “self-tracking”, “auto-analytics”, “body hacking” and “self-quantifying”
To help you get started on your journey to self discovery and understanding watch the QS Boston youtube channel for latest videos. Then you should go to a Boston Quantifed Self Meetup to meet face to face with others that think like you.