For years, we have made our genes the key to our health and longevity. But what happens if lifestyle and environmental factors play a much more important role? An innovative study of the University of Oxford suggests that the increase that behaviors such as smoking, exercise and socioconomic conditions have a much greater impact on aging and disease than genetics.
The study that redefines aging
Research, recently published in Nature MedicineThey analyzed data from more than 500,000 participants in the United Kingdom biobank. The researchers tracked 164 lifestyle and environmental factors along with 22 main genetic risk scores related to the disease for 12.5 years. According to the main author, Dr. Austin Argentieri, this is one of the most complete studies that quantifies the relative contributions of the environment and genetics to aging and premature mortality.
The findings are surprising: environmental factors explained 17% of changes in mortality riskwhile genetic influences contributed Less than 2%. In a nutshell, their habits and their daily surroundings are shaping their long -term health much more than their inherited DNA.
What influences aging?
Among the 25 key environmental risk factors identified, four stood out for having the greatest impact on biological aging and mortality:
- Tuxedo: An important taxpayer to 21 different diseases
- Socioconomic state: Factors such as income, housing ownership and labor security influenced 19 diseases
- Physical activity: Linked to a reduced risk of 17 diseases
- Living conditions: Poor housing and environmental exposure had a broad spread of health consequence
These findings are aligned with previous research on the impact of lifestyle on chronic diseases, but this study emphasizes that even factors as soon as Infant weight and prenatal exposure to maternal smoking Can affect health risks 30 to 80 years later.
Interestingly, the study found that Lung, heart and liver diseases They are more strongly influenced by environmental factors, while Genetics plays a more important role in dementia and breast cancer.
Can we change our destiny?
One of the most promising things in this investigation is that 23 of the 25 key risk factors are modifiable. This means that through Personal policy and options interventionsIndividuals and governments have a real opportunity to improve public health.
Professor Cornelia Van Duijn, who directed the study, points out that although genetics is crucial for some conditions such as neurological diseases, “the greatest drivers of chronic diseases, such as heart, lung and useful life.
The implication is clear: although we cannot change our genes, We have much more control over our health than we think. Reducing smoking, increasing physical activity and addressing socioconomic disparities could have a deep impact on public health, even surpassing genetic predistions.
The final result
This research fundamentally changes how we should think about aging and disease. Instead of renouncing Ourelves to the genetic destination, we must focus on What we can control: Our daily habits, the policies we support and the environments we create. If aging and longevity are largely formed by the lifestyle and the environment, then the power to live healthier and longer lives is, literally set aside, in our hands.