http://www.livescience.com/26597-german-army-soldiers-breasts.h
The growth of male breasts isn't altogether uncommon: The condition is known
as gynecomastia, and it's caused by an imbalance in testosterone and
estrogen levels.
...
Over 70 percent of the German battalion's soldiers have been diagnosed with
significant gynecomastia. Military officials have promised to keep an eye on
the men's breasts.
