It's not uncommon for Paula Lester's jaw to drop when she spots a patient's age on the chart. The New York-based geriatrician treats plenty of people in their 90s who could easily pass for 70. She also has patients in their 70s who say they feel decades older.
When it comes to age, Lester says, “It really is just a number. It's about how you feel.”
The notion of how old you feel versus how old you really are has been attracting more attention from researchers and medical professionals. Recent studies have linked subjective age — the age that you feel — to a range of health outcomes, including depression, dementia and longevity. The findings: The younger you feel, the better off you may be.
Adults who feel younger report fewer chronic conditions than those who feel older. They also take fewer medications, visit the doctor less often and are more likely to maintain a normal weight, according to data collected from a large national study on health and well-being led by the University of Wisconsin.
Biology may be at play when it comes to the association between feeling younger and living longer. Researchers recently identified more favorable biomarkers associated with liver and kidney function in adults 55 and older who reported feeling younger than their chronological age, compared to those who felt their age or older. This finding could help explain the lower prevalence of age-related disease among more youthful-minded adults, says pathologist Bharat Thyagarajan, the study's lead author and an associate professor of laboratory medicine and pathology at the University of Minnesota.
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Find what makes you feel young
Asking patients how old they feel isn't common medical practice yet. But Thyagarajan said it is a “fairly easy” thing to include during a routine doctor's visit, and doing so could help identify patients at higher risk for age-related diseases so they can be screened more intensively.