Violence in America (September 1996 | Volume: 47, Issue: 5)

Violence in America

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Authors: David T. Courtwright

Historic Era: Era 10: Contemporary United States (1968 to the present)

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September 1996 | Volume 47, Issue 5

VIOLENCE is the primal problem of American history, the dark reverse of its coin of freedom and abundance. American society, or a conspicuous part of it, has been tumultuous since the beginnings of European colonization. But while seventeenth-century Virginia was a disorderly place, the Massachusetts Bay Colony was not, and though the South and the frontier and the black ghetto have known especially high levels of violence and disorder, rural New England and Mormon Utah have almost always been tranquil.

DO THESE DIFFERENCES SIMPLY reflect American pluralism? Perhaps New England was less violent because the godly Pilgrims and Puritans settled there. Perhaps Southern and Western communities were more violent because the presence of slaves and Indians aroused fear and encouraged people to carry guns. Such explanations go a long way toward accounting for the regional peculiarities of American violence, but they are not the whole story.

Men, especially young men, are at the heart of American violence. Their behavior is most dangerous in their teens and twenties, the years when they are likeliest to kill, riot, vandalize, steal, and abuse alcohol or other drugs. The surest way to reduce crime, the psychologist David T. Lykken of the University of Minnesota has remarked, would be to put all able-bodied males between the ages of twelve and twenty-eight into cryogenic sleep.

He has a point. Though the median age of arrest is subject to historical variation (it has gone down in the United States in the last century), the arrest bulge has always occurred among citizens in their teens and twenties and declined rapidly thereafter. So far as anthropologists and historians have been able to discern, this has been true of all societies, from Sweden to Samoa. Nations as far apart in time and character as Victorian England and Hefnerian America have shown similar distributions of arrests by age and gender.

Whenever one spots a universal human pattern, the chances are good that it is rooted in biology, in this case hormonal differences. After conception we are sexually undifferentiated until minute genetic differences trigger the development of testes or ovaries. The testes produce testosterone, which organizes the development of male genitals and shapes the central nervous system. Testosterone is why boys are born boys and why they later become men. In the absence of testosterone, the fetus will develop into a female.

At the onset of puberty, the testes flood the body with testosterone, raising levels in the blood to as much as twenty times those in women and pre-pubertal boys. This surge of testosterone has effects that include increased muscle mass and bone density, hairier bodies, deeper voices, and increased libido, impulsiveness, and aggressiveness. We know that testosterone is causally related to these changes because its presence or absence is easily manipulated. Castrated human males, even castrated criminals, lose interest in sex and fighting. All mammals react in the same way, which is one reason we neuter tomcats and