Does my grip strength say anything about how long I will live?
Grip strength says something meaningful about your overall health and risk of death, but it is not a measure to rely on in isolation: training explosive muscle power as well is more beneficial than monitoring grip strength alone.
Yes, grip strength is surprisingly strongly linked to how long you live. In the UK Biobank (500,000 people) and the global PURE study (140,000 people in 17 countries), every 5 kg lower grip strength was associated with a 16 to 20% higher risk of dying during the study period. The association is large and consistent across different populations. These are associations, however, not proof that higher grip strength itself extends your life.
For cardiovascular disease, the increased risk of death per 5 kg lower grip strength rises to 17 to 22%. In the PURE study, grip strength was therefore an even better predictor of cardiovascular mortality than blood pressure. The strongest association applies to death from lung diseases such as COPD: a 24 to 31% higher risk per 5 kg lower strength. For cancer mortality the association is weaker (10 to 17%), and for prostate cancer no association was found at all.
An important nuance: a 2025 study (CLINIMEX) shows that explosive muscle power, meaning how quickly your muscles can generate force, is a far stronger predictor of mortality than grip strength alone. People with the lowest muscle power had up to nearly seven times greater risk of dying compared with the strongest group. Once you correct for that muscle power, grip strength on its own is no longer statistically significant.
Grip strength also reveals something about your overall health beyond mortality. It is associated with bone density, bone fractures, cognitive functioning, depression, sleep problems, diabetes and quality of life. Several research groups therefore propose treating it as a kind of fifth vital sign, alongside blood pressure and heart rate.
Grip strength changes with age. Men reach their peak of around 51 kg on average between the ages of 29 and 39, while women reach their peak of around 31 kg between the ages of 26 and 42. After that, strength gradually declines. By the age of 80, roughly one in four people has a clinically weak grip strength. The cut-off values for this are below 26 kg for men and below 16 kg for women.
The claims are based on several large prospective cohort studies (UK Biobank n~500,000, PURE n~140,000, CLINIMEX 2025) and observational research into normal values per age group. No randomised controlled trials are available that prove causality. All associations are observational.