The Longevity Trinity: read the free preview
The Longevity Trinity by Jim Goetz is a short book, about 50 pages, on three physical tests that large studies have linked with how long people live, plus a daily routine to work on them. Read the free preview now, sent to your phone; the full free edition is planned for December.
Paperback $5.99 on Amazon. Start reading free here.
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What's inside
- Aerobic fitness (VO2 max). In a large study of adults who took a treadmill test, higher cardiorespiratory fitness was associated with lower long-term mortality (Mandsager et al., 2018).
- Grip strength. In a large international study, lower grip strength was associated with a higher risk of death from any cause (Leong et al., 2015).
- The sitting-rising test. In a study of middle-aged and older adults, a lower score getting down to and up from the floor was associated with a higher risk of death during follow-up (Brito et al., 2014).
The book explains each test in plain language and ends with a short daily routine for working on all three. These are findings about groups of people, not a prediction for you.
Want your three numbers measured in person?
FIT Lab in Colts Neck offers a test visit for all three. See how the test visit works.
This is education, not medical advice or a diagnosis. Talk with a licensed healthcare provider before starting any exercise or testing program.
Sources
- Brito LB, et al. Ability to sit and rise from the floor as a predictor of all-cause mortality. Eur J Prev Cardiol. 2014;21(7):892-898. PubMed
- Leong DP, et al. Prognostic value of grip strength: findings from the PURE study. Lancet. 2015;386(9990):266-273. PubMed
- Mandsager K, et al. Association of cardiorespiratory fitness with long-term mortality among adults undergoing exercise treadmill testing. JAMA Netw Open. 2018;1(6):e183605. PubMed
Written by Jim Goetz, CSCS · Last updated 2026-10-13