
What to track first if you actually want to optimize healthspan
The short list of signals that move the needle — and the ones safe to ignore for now.
Centrum is a mainstream multivitamin brand with a broad portfolio of micronutrient products. Centrum Silver is particularly relevant to the longevity landscape because of the COSMOS cognitive studies in older adults.
People seeking foundational multivitamin support with notable clinical research relevance in older-adult cognition.
These are editorial signals, not endorsements. Always pair with qualified medical guidance.
A short due-diligence list to apply before paying, booking, subscribing, or building a routine around any longevity tool, test, or program.
What exactly will this measure, track, or improve — and over what time horizon?
Is there medical or clinician oversight, and how qualified are the people behind it?
How should I interpret the data, and what does a meaningful change actually look like?
What will I do differently with the results? If the answer is unclear, the signal isn't useful yet.
Is the claim evidence-led or marketing-led? Where is the underlying research?
What is the true cost after the first purchase, test, or subscription — including renewals?
Does this replace medical advice? It should not. Where does professional care still belong?
How does this compare to simpler, lower-cost, or higher-evidence alternatives?
Life Extension offers a broad catalog of supplements, lab testing, and longevity-oriented wellness products.
AG1 is a daily greens powder positioned around foundational nutrition, gut health, immune support, and daily wellness.
Designs for Health offers practitioner-focused supplements and nutrition products across metabolic health, gut health, hormones, cognition, and foundational wellness.
Elysium Health offers supplements and biological age testing positioned around cellular health, NAD+, metabolic aging, and aging research.
Momentous offers performance nutrition and supplements across protein, creatine, sleep, recovery, and cognitive support.
Do not interpret multivitamin use as guaranteed cognitive protection or disease prevention. People with medical conditions or medication use should consult a clinician about supplement fit.

The short list of signals that move the needle — and the ones safe to ignore for now.

A direct comparison of recovery, strain, sleep, and fitness signal — without the influencer noise.

ApoB, ferritin, hormones, inflammation — the markers worth knowing, and how to read them.