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One-breast enlargement from German military rifle chest-slapping

The rhythmic impact of a rifle wielded by a military man can puff up his chest. This sometimes leads to worry, or worse. Though soldiers might appreciate a good pair of breasts, what would happen if they themselves grew a pair? Or if they grew just one?

Some men do experience this affront. A study called Gynecomastia in German Soldiers: Etiology and Pathology, published last year in the journal GMS Interdisciplinary Plastic and Reconstructive Surgery, analysed the plight of 211 male German soldiers who suffered from, or at least exhibited, one or two enlarged breasts. The ailment has a medical name: gynecomastia.

The study’s authors, Prof Björn Dirk Krapohl, Dr Dietrich Doll, and four colleagues at Bundeswehrkrankenhaus, the German Armed Forces Hospital in Berlin, played detective. They set out “to investigate the increased incidence of left-sided gynecomastia in members of the German Ministry of Defense Guard Battalion who perform ceremonial duties in Berlin.…

—So begins this month’s Improbable Research column in The Guardian. (NOTE: some of the comments from Guardian readers are rather entertaining.)

Improbable Research