University of California, Irvine Study Finds Genetic Link to Longevity  
1/4/2013 7:49:13 AM

A variant of a gene associated with active personality traits in humans seems to also be involved with living a longer life, UC Irvine and other researchers have found. This derivative of a dopamine-receptor gene – called the DRD4 7R allele – appears in significantly higher rates in people more than 90 years old and is linked to lifespan increases in mouse studies.