Summary: New findings from longevity research emphasize that lifestyle choices — not just genetics — play a central role in living longer and healthier lives. While exceptional individuals such as 115-year-old Ethel Caterham may benefit from favorable genes, evidence increasingly points to daily habits like physical activity, diet, sleep and stress management as major determinants of lifespan and healthspan.
Population studies show that even modest levels of exercise and plant-forward diets are associated with longer life and fewer chronic diseases, while poor sleep patterns and chronic stress correlate with worse outcomes. Although genetics set part of the stage, practical lifestyle changes can meaningfully shift the balance in favor of healthier aging.
Key Facts:
- Movement matters: About 75 minutes of brisk walking per week is associated with roughly two extra years of life.
- Diet influences aging: Diets higher in fruits, vegetables, whole grains, nuts and legumes and lower in processed meats, trans fats, fried foods and excess sugar are linked with healthier aging.
- Social connection supports longevity: Older adults who engage socially on a daily basis have markedly higher odds of living additional years in good health.
Source: The Conversation
A 115-year-old Surrey woman named Ethel Caterham has been recognized as the world’s oldest living person. Many readers may wonder whether her longevity is due to genes, lifestyle, or both. While supercentenarians are rare exceptions, studying long-lived populations can highlight habits that raise the odds of long, healthy lives for the broader public.
1. Physical activity
Regular movement benefits nearly every aspect of health. Research consistently shows that people who are more active tend to live longer and experience fewer chronic conditions. Moving from a sedentary lifestyle to modest activity — for example, roughly 75 minutes of brisk walking per week — has been linked with about two additional years of life.
It’s also important to understand that inactivity is harmful in its own right. The health benefits of exercise are not simply the inverse of the harms of sitting: being active and minimizing prolonged sedentary time are both necessary. Extended periods of sitting are associated with a higher risk of premature death from various causes. To reduce sitting time, consider standing up frequently (every 30 minutes), choosing face-to-face conversations over email, and standing during commutes when possible.
A practical goal for many people is around 30 minutes of moderate exercise most days, combined with regular breaks from sitting. This approach helps maximize the chances of a longer, healthier life.
2. Eat your vegetables
Dietary patterns have a major influence on long-term health. Large cohort research that tracked about 100,000 people over decades found that those who reached age 70 free of chronic disease tended to consume more fruits, vegetables, whole grains, nuts and legumes, and fewer trans fats, processed and red meats, fried foods and sugary products.
This does not require strict vegetarianism; rather, it highlights the types of foods commonly associated with healthy aging. Timing and amount of food also matter: animal studies link caloric restriction and intermittent fasting to increased lifespan, and early human trials show fasting can induce favorable metabolic changes. However, larger and longer human studies are still needed to confirm effects on lifespan and healthspan.
3. Sleep
Consistent, good-quality sleep supports health across the lifespan. Large-scale studies have tied irregular sleep patterns to substantially higher risks of early death, and shift workers frequently show higher risks for stroke and other adverse outcomes. For example, nurses who worked rotating shifts for many years appeared less healthy at retirement and had shorter lifespans than colleagues who did not work shifts.
Sleep needs vary between individuals, which makes blanket recommendations difficult. Health services commonly advise adults to aim for 7–9 hours per night as a general guideline, but the ideal duration and timing may differ for each person.
4. Stress and social connection
Psychological stress influences health at multiple levels. Early-life adversity such as loss, neglect or abuse can have lasting biological effects — including increased inflammation — that raise the risk of poor health and premature mortality later in life. Conversely, greater psychological resilience to stress among older adults is associated with lower mortality risk.
Simple interventions, like regular yoga over several weeks, can improve resilience in older adults. Social engagement also appears to protect health: older people who interact socially every day are far more likely to live additional years than those who are isolated. Strong social networks can reduce perceived stress and provide practical and emotional support, contributing to better long-term outcomes.
The role of genetics
Genetics do contribute to longevity. Some genetic variations are more common in long-lived individuals, and estimates suggest that inherited factors may account for roughly 20–40% of variation in lifespan. Still, genes are not everything. Even in families with exceptional longevity, other relatives may die earlier from common causes. Cellular damage, random biological events and environmental exposures all influence the outcome.
Because genetics are largely beyond our control, the most practical way to increase the chances of a longer, healthier life is to adopt evidence-based lifestyle habits: stay physically active, favor a plant-forward diet, maintain good sleep routines, manage stress and nurture social connections.
About this longevity and aging research news
Author: Bradley Elliott
Source: The Conversation
Contact: Bradley Elliott – The Conversation
Image: Image credit: Neuroscience News