Worthyest Longevity Index™

How Well Are You
Aging, Really?

A personalized assessment across six science-backed pillars of longevity — tailored to your age and biology, built on peer-reviewed research.

4 minutes
Personalized results
Evidence-based
Backed by Research. Scoring derived from longitudinal studies on lifespan and healthspan, personalized to your life stage. Your responses stay private — we never share your data.
About You 1 of 26

Here's your full report

All six pillars, unlocked

✦ Your Personalized Report

Your Longevity Index:
0 / 100

0
Longevity Index

See what your score means
for someone like you

See your full pillar breakdown, personalized to your age and biology, with specific next steps for your weakest pillars and what to focus on first.

Your email is used to send your report and is never shared. Privacy details

Your full report is unlocked

All six pillar insights and your personalized recommendations are now open. Taking you to the top of your full report…

Share Your Results

This assessment draws on findings from the following peer-reviewed research and institutional sources:


• Physical Activity Guidelines for Americans, 2nd Ed. — U.S. Dept. of Health and Human Services (2018)

• Li H. et al., "Association of healthy sleep patterns with risk of mortality," QJM (2024)

• Holt-Lunstad J. et al., "Social Relationships and Mortality Risk," PLoS Medicine (2010)

• Buettner D., "Blue Zones: Lessons for Living Longer," National Geographic (2012)

• Härkänen T. et al., "Estimating expected life-years and risk factor associations," BMJ Open (2020)

• Reimers C.D. et al., "Does physical activity increase life expectancy?," J Aging Res (2012)

• Katzmarzyk P.T., "Sedentary behaviour and life expectancy in the USA," BMJ Open (2012)

• Stanford Center on Longevity, "How Social Connection Supports Longevity" (2023)

• Harvanek Z.M. et al., "Psychological and biological resilience modulates stress," Transl Psychiatry (2021)

• Hall K.D. et al., "Ultra-Processed Diets Cause Excess Calorie Intake," Cell Metabolism (2019)

• GBD 2016 Alcohol Collaborators, "Alcohol use and burden," The Lancet (2018)

• Dmitrieva N.I. et al., "Middle-age high normal serum sodium as a risk factor," eBioMedicine (2023)

• Alimujiang A. et al., "Sense of Life Purpose and All-Cause Mortality," JAMA Network Open (2019)

The Worthyest Longevity Index is for informational and educational purposes only. It is not medical advice, diagnosis, or treatment, and it is not a substitute for the guidance of a qualified healthcare professional. Worthyest and Grow Tree Media LLC are not medical providers. Always consult your physician or another qualified health provider before making changes to your diet, exercise, sleep, or other health-related habits, and with any questions about a medical condition.