This is evidenced by the results of a new study that studies the relationship between air pollutants and cognitive ability: “Even if exposure to PM 2.5 levels for several weeks, it has been shown to impair mental function.
Air pollution is not only the cause of certain types of cancer. Many studies have shown that living in an area with high levels of pollutants can have many health consequences, thereby increasing the risk of heart attack, asthma, diabetes, premature birth and even dementia.However, new research explores the short-term effects of air pollutants for the first time and finds Even after a few weeks of exposure When the content of particulate matter is high, it will damage the brain and impair cognitive function.
It was observed that this relationship was due to exposure to fine dust (2,5 pm), for example, composed of 954 men (average age 69) living in the subway in the Boston area of Massachusetts. They include fire, heating, passive cigarette smoke, charcoal grills, and particulates emitted by car exhaust. The mental function of these people was evaluated at the beginning of the study, and their mental function was repeatedly evaluated over the next 28 days. Mini Mental State Examination (MMSE), A test widely used to analyze neurocognitive abilities, its scores are compared with the air pollution levels recorded during the month.
The results are published in About Natural agingSaid that weeks with higher average PM 2.5 values are associated with lower MMSE test scores. Compared with the PM 2 levels of 5 minors, the chance of a score below 25/30 is 63% higher. “Despite emission regulations, short-term peaks of air pollution are still frequent, and May be harmful to health, Even below the level generally considered dangerous -Said Andrea Baccarelli, professor of environmental sciences at the Mayman School of Public Health in New York, New York, and senior author of the study. When air pollution is reduced, the brain will recover and return to normal.But if repeated, these plots Will cause long-term damage“.
The researchers also pointed out that people taking non-steroidal anti-inflammatory drugs (fan), especially aspirin, reduces the impact of air pollution on cognitive ability, which shows that the use of these drugs can alleviate the negative effects of pollutants. Although no direct association has been observed, non-steroidal anti-inflammatory drugs can alleviate changes in cerebral blood flow triggered by neuritis or inhaled particulates. “Taking aspirin or other anti-inflammatory drugs seems to reduce these effects -Summary of Bakarelli-, sWell, the environmental policy still needs to be changed correctly to further limit air pollution“.