A variant of a gene associated with active personality traits in humans seems to also be involved with living a longer life, researchers have found.
People who carry this variant gene, Moyzis said, seem to be more motivated to pursue social, intellectual and physical activities. The variant is also linked to attention-deficit/hyperactivity disorder and addictive and risky behaviors.
"While the genetic variant may not directly influence longevity," Moyzis said, "it is associated with personality traits that have been shown to be important for living a longer, healthier life. It's been well documented that the more you're involved with social and physical activities, the more likely you'll live longer. It could be as simple as that."
Numerous studies -- including a number from the 90+ Study -- have confirmed that being active is important for successful aging, and it may deter the advancement of neurodegenerative diseases, such as Alzheimer's.