Longevity research asks how people can live longer and spend more of those years in good health. No supplement, peptide or device can replace the foundations with the strongest real-world evidence.
Measure healthspan, not marketing language
“Cellular age”, “optimisation” and “rejuvenation” can sound precise while hiding unclear outcomes. Useful evidence considers function, cardiovascular events, fractures, disability, cognition, quality of life and mortality. A short-term biomarker change may be interesting without showing that people feel better or live longer.
The durable foundations
- Regular aerobic and muscle-strengthening activity adapted to ability.
- A varied diet that supports cardiovascular and metabolic health.
- Avoiding smoking and limiting alcohol.
- Sleep, vaccination and evidence-based screening.
- Treating blood pressure, diabetes and other established risks with appropriate care.
- Social connection and support for mental health.
How to read longevity research
Animal lifespan studies help scientists explore mechanisms, but species, exposure and disease patterns differ. Observational human studies can identify associations but may be affected by wealth, healthcare access and other confounders. Randomised trials are valuable, yet often too short to measure lifespan. Good reporting explains these limits instead of turning every signal into a recommendation.
Questions for a supplement, peptide or test
- What exact outcome improved in humans?
- Was the study large enough and independently replicated?
- Were harms and interactions reported?
- Does the test lead to a decision known to improve health?
- Is the product authorised for the claimed use?
Peptide claims
There is no peptide proven to extend the lifespan of healthy people. See our longevity peptide evidence guide for a closer look at common marketing patterns and safety uncertainty.
When to seek professional advice
Discuss major changes with a clinician if you have a health condition, take medicines, are frail or have unexplained symptoms. A personalised plan should prioritise risks that can actually be measured and treated.