Active, Extrovert Life Can Make You Live Longer

A new study has found leading an active, extrovert life like that of a thrill seeker might lead to a life beyond 90s.

A variation of a much-studied gene involved in transmission of dopamine, a key component of the brain's reward-and-learning system, was found to be far more frequent among the very old, News.com.au reported.

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Professor Robert Moyzis of the University of California, Irvine, said that the variant might not extend lifespan directly.

Instead, it appears to predispose those who bear it to a more vigorous lifestyle.

The human subjects in the study came from Laguna Woods, part of a group involved in the Leisure World Cohort Study that began in 1981. It included people who were 90 or older in 2003.

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Most have since passed away, Prof Moyzis said.

But their genes, as well as cell lines, live on, perpetuated in laboratories so they will be available for research.

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In this study, genetic samples from 310 people 90 years old or older were checked for the gene variant, known as the DRD4 7R allele.

Sixty-six percent more people possessed the variant in the 90-plus group when compared with a control group of nearly 3000, aged seven to 45.

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The discovery of the gene variant's association with longevity might inspire people to become more active as they age, potentially extending their lives - even if they don't harbor the variant themselves, Prof Moyzis said.

Source-ANI