An international study conducted across 34 countries has shown that the biological aging process of the human brain is directly linked to the environment in which we live.<\/p>\n
Scientists have determined that factors such as air pollution, social inequality, and political instability<\/b> accelerate brain aging more than any single clinical diagnosis. In the study, which is based on data from 18,701 individuals, researchers used the term “exposome.”<\/b> This refers to the combined set of environmental, social, and political influences an individual experiences throughout their lifetime.<\/p>\n
The findings reveal that these factors act “syndemically,”<\/b> meaning they reinforce each other’s negative impact. Together, they have an effect on the brain that is 15 times greater<\/b> than any single factor taken alone.<\/p>\n
Researchers analyzed 73 different environmental factors and identified two primary directions:<\/p>\n
The Physical Environment:<\/b> Factors such as air pollution, extreme temperatures, and a lack of green spaces lead to structural changes in the brain. This process particularly damages areas responsible for memory and emotional regulation, often caused by neuroinflammation and oxidative stress.<\/p>\n<\/li>\n The Social Environment:<\/b> Poverty, inequality, and a lack of social support directly affect parts of the brain responsible for thinking, emotions, and social behavior. According to scientists, the brain ages much faster during the process of constant adaptation to chronic stress than it does during dementia or other cognitive disorders.<\/p>\n<\/li>\n<\/ul>\n The study’s authors explain that individual efforts, such as a healthy diet and physical activity, are not enough for healthy brain aging. To maintain cognitive health, it is essential to take complex political steps<\/b>, including environmental protection, reducing air pollution, and expanding green spaces. Furthermore, strengthening social policy\u2014specifically increasing access to education and creating robust social protection systems\u2014is of decisive importance.<\/p>\n