Will you be lonely this Christmas? Study suggests DNA may be to blame for isolation – which can be as harmful as smoking 15 cigarettes a day

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Some people may be genetically prone to be lonely, a study suggests.

Being socially isolated leads to an early grave and is considered to be as damaging as smoking 15 cigarettes a day.

And new research on rhesus macaques – who congregate in groups of up to 200 – revealed some monkeys choose to be lonely for most of their lives.

A team of international scientists believe this suggests their isolation is caused by a persistent trait or traits that they are unable to control.

Researchers from the universities of Exeter, Puerto Rico and Pennsylvania claimed the cause is a mixture of their genes.

65f98e1a27f3437161c3f237db2a2144 Will you be lonely this Christmas? Study suggests DNA may be to blame for isolation - which can be as harmful as smoking 15 cigarettes a day

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