Longevity · Foundations
What is longevity?
Longevity means living a long life — but most people care about living long in good health. What the term covers, what shapes it, and what can be measured.
Written by LON6EVITY Editorial Team · Last updated
Overview
Longevity simply means length of life. In health discussions the word is often used more broadly: not only how long people live, but how many of those years are spent in good health and with good function.
What shapes how we age
The WHO describes ageing as the result of a wide range of molecular and cellular damage accumulating over time, which leads to a gradual decrease in physical and mental capacity. It also stresses that the diversity seen in older age is not random: much of it is shaped by physical and social environments and by behaviours such as diet, physical activity and tobacco use.
What can be measured
There is no single test for longevity. What can be tracked are risk factors linked to common age-related diseases — for example blood pressure, cholesterol and ApoB, blood sugar and HbA1c, kidney function, body weight, physical activity and sleep. Following these over time gives a more useful picture than any one snapshot.
A realistic view
Claims about slowing or reversing ageing should be treated with caution. The best-supported measures remain the familiar ones: not smoking, regular physical activity, a balanced diet, adequate sleep, limiting alcohol and keeping cardiovascular risk factors in check with your doctor.
Factors that can affect the result
- Physical activity
- Diet
- Tobacco and alcohol
- Blood pressure and cholesterol
- Sleep
- Social connection
Questions people commonly ask
- Is longevity mostly genetic?
- Genes play a role, but the WHO notes that environments and behaviours strongly shape health in older age.
- Is there a test that tells me how long I will live?
- No. Tests can describe risk factors, not predict an individual lifespan.
Related topics
Build your longevity profile
What does this mean for your own health data? Log your results, follow trends over time and bring an organised summary to your next doctor's appointment.