Interesting quote: One intriguing finding in the study was that gene variants that raise a person's risk of disease may matter less than genes that protect aga

Interesting quote: One intriguing finding in the study was that gene variants that raise a person's risk of disease may matter less than genes that protect against disease. The scientists found that centenarians had roughly the same number of high-risk genes as the rest of the population, but had more protective genes to cancel them out. The finding is important, because commercial genetic tests look only for genes that raise a person's disease risk, rather than reduce it.