https://en.wikipedia.org/wiki/Longevity

Longevity may refer to especially long-lived members of a population, whereas life expectancy is defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts).

Crucial factors affecting longevity

Published:October, 2023

https://www.thelancet.com/journals/lanhl/article/PIIS2666-7568(23)00171-X/fulltext

Healthy Longevity

https://www.hsph.harvard.edu/nutritionsource/healthy-longevity/

Five factors for a longer and healthier lifespan

1. Healthy diet – The prevalence of hypertension (high blood pressure) and dementia increases with age. Eating patterns such as those from the DASH, MIND, and Mediterranean diets can lower the risk of these and other chronic conditions that accompany older ages. A multivitamin-mineral supplement may also help to improve cognitive function and memory in some people, according to large randomized controlled trials.
2. Regular exercise – Regular physical activity lowers the risk of several chronic conditions that increase with age including heart disease, hypertension, diabetes, osteoporosis, certain cancers, and cognitive decline. Exercise also helps to lower anxiety and blood pressure, and improve sleep quality. The Physical Activity Guidelines for Americans from the U.S. Department of Health and Human Services first recommends to move more and sit less, with some activity better than none. For additional health benefits, they advise a minimum of 150-300 minutes weekly of moderate to vigorous activity, like brisk walking or fast dancing, as well as two days a week of muscle-strengthening exercises. Older adults who are at risk for falls may also wish to include balance training such as tai chi or yoga. See additional physical activity considerations for older adults.
3. Healthy weight – Determining one’s healthy weight range is unique for each person. Factors to consider include reviewing current health conditions, family history, weight history, and genetically inherited body type. Rather than focusing on scale weight alone, monitoring an increase in harmful visceral “belly fat” and weight change since age 20 may be useful.
4. Not smoking – Smoking is a strong risk factor for cancer, diabetes, cardiovascular disease, lung diseases, and earlier death as it promotes chronic inflammation and oxidative stress (a condition that can damage cells and tissues). [2] Smoking harms nearly every organ of the body. Quitting greatly reduces the risk of these smoking-related diseases. [4]
5. Moderate alcohol – Research finds that moderate drinking, defined as 1 drink daily for women and 2 drinks daily for men, is associated with lower risk of type 2 diabetes, heart attacks, and early death from cardiovascular disease. Low to moderate amounts of alcohol raises levels of “good” cholesterol or high-density lipoprotein (HDL) and prevent small blood clots that can block arteries. However, because alcohol intake—especially heavier drinking—is also associated with risks of addiction, liver disease, and several types of cancer, it is a complex issue that is best discussed with your physician to weigh your personal risk versus benefit.