n. A person who uses websites or other technologies to meticulously track various aspects of his or her body, mental state, and activities.
Other Forms
The Internet had long ago turned navel-gazing into an international pastime, but self-tracking takes the self-absorption to a new level. Using elaborate graphs, pie charts, websites and newer technologies, self-trackers catalogue everything in their lives, sometimes with no clear result.
—Zosia Bielski, “My so-called life,” The Globe and Mail, February 19, 2009
Are self-trackers narcissists? In the video above, from the recent QS Show&Tell, I report on trying to find an answer. Here I give a quick summary of that talk and a reference link. I decided to run this test because a few weeks ago Alexandra Carmichael made a detailed and helpful report on her self-tracking project. Sandy Lane made the following comment:

Does it measure your narcissism too?
—Gary Wolf, “Are Self-Trackers Narcissists?,” The Quantified Self, February 17, 2009
2008 (earliest)
Messina and Evans prefer the term "data junkies," spoken with the self-effacing self-awareness that comes from months of meticulous self-study.

Self-trackers like Messina and Evans could spend hours online, charting, analyzing, tracking. Life as a series of pure, distilled data points, up for interpretation.
—Monica Hesse, “Bytes of Life,” The Washington Post, September 09, 2008
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