A 2026 study reported that a biological-age measure was associated with cognitive impairment risk in middle-aged and older adults. The finding adds to growing evidence that chronological age alone may not adequately describe how biological systems are functioning.

This is an important concept in The Standardized Science of Personalized Wellness. The book asks readers to look beyond a single number, symptom, or laboratory result and instead consider how multiple interconnected biological systems are functioning over time.

Your birthday tells you how long you have lived. Your biology may tell a much more important story about how you are aging.

Research Reference:
Qiu W, et al. (2026). Association between light BioAge and cognitive impairment risk in middle-aged and elderly people: A retrospective cohort study. Scientific Reports. DOI: 10.1038/s41598-026-65251-8.