Abuse may trigger gene changes found in suicide victims - health - 07 May 2008 - New Scientist: "Early child abuse may forever change the way genes are expressed in the brain, suggests a postmortem study of people who died by suicide.
It is now well established that it isn't just what genes we inherit, but how they are turned on and off that influences our development. Most of these control switches are thrown before we are born, but some are set in early life, and to a lesser degree, throughout our lives.
Genes are switched off when methyl groups are added to our DNA. Studies have shown that diet, stress and even maternal care can influence these 'epigenetic' changes."
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