Enlisting in the Military

Wednesday, April 22nd, 2015

Why do people enlist in the U.S. military? It’s genetic:

Analysis of twin pairs drawn from the National Longitudinal Study of Adolescent to Adult Health (Add Health) revealed that 82% of the variance was the result of genetic factors, 18% of the variance was the result of nonshared environmental factors, and none of the variance was accounted for by shared environmental factors.


  1. Bob Sykes says:

    Every aspect of every organism has a genetic component, and that includes all human behaviors.

  2. Lu An Li says:

    A. It is a family tradition.

    B. Get away from mama and do something on your own for the first time.

  3. III says:

    Don’t twin studies account for stuff like family tradition?

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