Left: a notched tally bone from about 28,000 BCE. Right: a handwritten weight-tracking notebook from 2014.

Notched tally bone, ~28,000 BCE Detail from a QS Show&Tell, 2024

Personal science is for everyone.

If you are self-tracking for any reason — to answer a health question, achieve a goal, explore an idea, or simply because you are curious — you can find help and support here.

QS Show&Tell Talks

Since 2008, people have been sharing their knowledge with peers by explaining: What did I do? How did I do it? What did I learn?

Cholesterol Levels While Nursing

Whitney Erin Boesel

I tracked my cholesterol across menstrual cycles while nursing to test whether it would improve on its own.

Quantified Self in Crisis

Kent Unruh

Living with Parkinson’s, I ran a few simple “quick studies” to understand my symptoms — and to reason clearly under the urgency of a health crisis.