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Gene that
makes men aggressive found
Friday March 09, 2012 08:16:53 AM,
IANS
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London: The "macho" gene which makes men behave
more aggressively than women under stress has been discovered.
They say this one gene could explain why men have a "fight or
flight" response while women are more likely to try and defuse the
situation, the Daily Mail said Thursday.
Australian researchers have studied the chemicals secreted by men
when they react to stress - and how this influences their
behaviour.
And they propose that the SRY gene - only found on the Y
chromosome - and the proteins it activates in the body are the
key.
This gene was previously thought just to be involved in the
development of male characteristics in the womb.
But Joohyung Lee and Vincent Harley from Prince Henry's Institute
in Melbourne have shown these proteins are actually present in the
brain and other organs of adult males.
They have shown these may regulate stress hormones and blood
pressure which cause stressed-out men to experience their pulse
quickening and adrenaline coursing through their veins -
triggering aggression, the newspaper added.
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