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Percentile Feedback Update
In March I discovered that looking at a graph of my productivity (for the current day, with a percentile attached) was a big help. My “efficiency” — the time spent working that day divided by the time...
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Van Gogh Defense Project: Rationale
A colleague I’ll call John has decided to start tracking his mood for a long period of time (years). He explains why: A few years ago, after a severe manic attack, I was diagnosed with bipolar...
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Butter and Arithmetic: How Much Butter?
I measure my arithmetic speed (how fast I do simple arithmetic problems, such as 3+ 4) daily. I assume it reflects overall brain function. I assume something that improves brain function will make me...
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Acne Cured by Self-Experimentation
In November, at Quantified Self Europe, Martha Rotter, who lives in Ireland, gave a talk about how she cured her acne by self-experimentation. She summarizes her talk like this (slides here): When I...
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The Value of Moodscope
In 2007, Jon Cousins started tracking his mood to help NHS psychiatrists decide if he was cyclothymic (a mild form of bipolar disorder). After a few months of tracking, he started sharing his scores...
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Butter Improves HDL and LDL as Much as Statins
A New York lawyer named Greg reports remarkably clear evidence about the effect of butter on blood lipid levels: It improved them. For a few years he measured his HDL and LDL regularly with a home...
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Effect of Vitamin D3 on My Sleep
I have blogged many times about biohacker Tara Grant’s discovery that she slept much better if she took Vitamin D3 in the morning rather than later. Many people reported similar experiences, with a few...
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Beijing Quantified Self?
I recently had lunch with Richard Sprague, an engineer at Microsoft Beijing. He raised the possibility of starting a Quantified Self Meetup group in Beijing. The meetings could be held in one of...
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Why Self-Track? The Possibility of Hard-to-Explain Change
My personal science introduced me to a research method I have never seen used in research articles or described in discussions of scientific method. It might be called wait and see. You measure...
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Quantified Self Utopia: What Would It Look Like?
On the QS forums, Christian Kleineidam asked: While doing Quantified Self public relations I lately meet the challenge of explaining how our lives are going to change if everything in QS goes the way...
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