I’ve been tracking my body composition (specifically weight and body fat percentage) pretty consistently for a number of years, and decided it would be a fun exercise to put together…

Blood oxygen saturation (SpO2) is an important, easy to measure biomarker that everyone should be tracking to optimize health, sleep, and fitness. As I have previously written, a drop in…

I spent some time analyzing all of my sleep tracking data from the past year collected using my Ōura ring. In the following chart, each stacked bar represents one day of…

I have long been interested in finding non-invasive ways to assess and optimize my mental fitness, from EEG-based systems to brain training apps. So when I came across Brain Gauge,…

I had a chance to sit down and chat with friend (and fellow self-experimenter) Boomer Anderson on his Decoding Superhuman podcast, where we cover a wide range of biohacking and…

In addition to their must-attend annual Quantified Self conferences in the US and Europe, the QS team also puts on an annual research symposium that brings together researchers, policy leaders, clinicians,…