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8-Humans: Scientists sift evidence for a 'God gene'



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TITLE:  Scientists sift evidence for a 'God gene'
SOURCE: The Washington Times, USA, by Roger Higfield (Daily Telegraph, UK)
        http://www.washtimes.com/world/20030324-3457211.htm
DATE:   Mar  24, 2003

------------------ archive: http://www.gene.ch/genet.html ------------------


Scientists sift evidence for a 'God gene'

LONDON - Scientists are hunting for a "God gene" that underpins our
ability to believe.

The idea of genes linked with beliefs does not look far-fetched, given
the influence of genetics on the developing brain.

Thomas Bouchard, a professor at the University of Minnesota at
Minneapolis, conducted a study of twins reared apart and concluded that
there was "a modest degree of genetic influence" in two measures of
religiousness.

There are many suggestions as to why a "God gene" - or a constellation of
genes linked with belief - may thrive.

John Burn, medical director of the Institute of Human Genetics at
England's University of Newcastle, said: "Survival of our species has
demanded a capacity to work together, to form societies. A willingness to
live, and if necessary die, for a belief is a powerful selective
advantage. I think there is a genetic propensity for us to believe."

Professor Edward O. Wilson, a sociobiologist at Harvard University,
points out that religious leaders often help perpetuate their followers'
genes by encouraging them to have big families and by including
prohibitions against incest and other risky activities.

Those who were more inclined to believe also might have survived better
than those who did not have such beliefs. A wide-ranging survey of
scientific evidence of the "faith factor" in disease has been conducted
by Mayo Clinic researchers. They concluded that a majority of 350 studies
of physical health and 850 studies of mental health have found that
religious involvement and spirituality are associated with better health.

Belief can help people to cope with stress, and religious people might be
more compliant and less likely to overindulge, or they might be able to
draw on a bigger support network, such as a congregation. If religious
belief does boost an individual's chances of survival, any genes linked
with a propensity to believe would survive in future generations.

Michel Raymond of the Institute of Evolutionary Science in Montpellier,
France, and Dutch researcher Frans Roes have published research in the
journal Evolution and Human Behavior that purports to show it is possible
to predict how religious a society is, and the kind of religion to which
it subscribes, by the evolutionary benefits.

For example, the survival of social groups in a desert would be promoted
by a supreme deity's legitimization of moral codes that protect natural
resources. When cultures around the world are compared, there is an
association between belief in gods strong on such moral codes and
societies where water is scarce.

They conclude that because larger societies tend to have more conflicts,
they are more likely to have a belief in God, to provide "moral glue" and
social cohesiveness. When there are recurring threats, moral rules should
be imposed with authority. They conclude: "How better than by a
moralizing god?"