Norman Holter

American biophysicist (1914-1983) · United States · On the map · Scientists · Died at 69

Norman Jefferis "Jeff" Holter was an American biophysicist who invented the Holter monitor, a portable device for continuously monitoring the electrical activity of the heart for 24 hours or more. Holter donated the rights to his invention to medicine.

Norman Holter is read about 24 times a day, in 15 languages.

A typical day, 30 days to 24 August 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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