MONTREAL — Bullying a child changes the structure surrounding his or her genes and can hinder their ability to handle stress later in life, a new study says.
Prof. Isabelle Ouellet-Morin of the University of Montreal completed the research while at King's College, Cambridge, and it was recently published in the journal Psychological Medicine.
She and her colleagues selected 30 pairs of identical twins from a pool of over 1,000 families. For all 30 pairs, one twin had been consistently bullied while the other had not. Ouellet-Morin said researchers controlled for virtually all "unique influences" in the twins' lives.
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