Do you have the single gene? Scientists identify DNA that means some people are 20% more likely to be single
Scientists have identified a 'singleton gene' which lowers level of serotonin
Reduced feel-good chemical makes people shy away from relationships
It also makes them more likely to be neurotic and to suffer from depression
Hair samples from almost 600 Chinese university students were tested
If it seems you are permanently single while everyone around you is in a relationship, blame your DNA.
Scientists have identified a 'singleton gene'.
Those who have it are 20 per cent more likely to be single than others.
It is thought that by lowering levels of the feel-good brain chemical serotonin, the gene makes people less comfortable in close relationships.
This could make it harder to form them in the first place – or lead to break-up after break-up
The scientists tested hair samples from almost 600 Chinese university students to analyse a gene called 5-HTA1 which comes in two different versions.
Those with the 'G' version were much more likely to be single than those with the 'C' version.
Some 60 per cent were not in a relationship – compared to 50 per cent of those in the 'C' group.
Importantly, the link couldn't be explained away other factors that influence relationships, including appearance and wealth.
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