Medicine: Does War Breed Boys?

In peacetime about 105 boys are born for every 100 girls. During and just after wars the ratio mysteriously increases to about 108 boys for every 100 girls. For the first time in World War II, this phenomenon has appeared in several warring nations of Europe, according to reports from Sweden last fortnight.

Many doctors and scientists dismiss the phenomenon as mere illusion and folkloreĀ—perhaps because they cannot explain it. But Metropolitan Life Insurance Co. statisticians call the changing ratio "an established fact." It did not occur in the Franco-Prussian War, which lasted only...

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