Air Pollution: One of the Causes Behind Declining Brain Health

Air Pollution

According to a recently conducted survey, air pollution may be one of the major causes for mental health conditions. In United States, data of approximately 151 million people, whereas 1.4 million people in Denmark have been analysed. The experts have found that there is strong connection between poor air quality as well as higher rates of bipolar disorder, schizophrenia, personality disorders and depression. Hence, pollution may be one of the causes for such conditions.

According to the reports suggested by US health insurance claims, air quality has been the strongest causes with bipolar disorder. There is a strong association between dirty air and psychiatric conditions that comprises of income, ethnicity and population density. There is also a major factor which could be the cause of both mental health and pollution is the traffic noise. Noise pollution also increases stress and disrupt sleep.

Another study suggests that deprivation could also be the key factor as poverty is connected to psychiatric conditions as well as pollution. Pollution has adverse impact on our brain as there are smallest pollutants known as PM2.5s enters through the blood-brain barrier and affects the brain.

Since 19702, Researchers have found that due to high levels of air pollution, both cardiovascular and respiratory health may be the cause of increased risk of early death from heart and lung diseases. Experts have evidence that dirty air has adverse affect on the health of brain.

Study suggests that high levels of air pollution may damage the cognitive abilities of children whereas adult may suffer from severe depression. Experts are stating that this need to be taken seriously. Several researches have been done and most of them states that air pollution has focused on a type of pollutant which is also known as fine particulate matter. These particles are thrown by power plants, factories, cars and trucks. They led to some severe cardiovascular effects and stated as one of six principal pollutants. Environmental Protection Agency (EPA) has created air quality standards for them.

A survey conducted states that older women who are exposed to high levels of the pollutant are at greater risk of cognitive decline as compare to other women. A study conducted on coarse particles as well as smaller particles prove that latter one can more easily penetrate the body’s defenses. They can easily move across lung to the blood and, extreme cases upto the olfactory nerve into the brain. Experts suggest that exposure to both fine and coarse particulate had connection with cognitive decline.

Recent survey conducted discovered that children who were exposed to higher levels of urban air pollutants also stated as polycyclic aromatic hydrocarbons may experience attention problems. They may also suffer from various symptoms of anxiety and depression.

A study conducted on the air pollution of Mexico City and a less polluted city with the brains of the dogs. It has been found that brains of the Mexico City dogs have increased inflammation and pathology. They are the primary cause of Alzheimer disease.

Now, it’s becoming quite clear that air pollution is one of the primary causes that affects the brain. However, there are number of questions that are still unanswered about association between brain health and pollution. Researchers are conducting more studies and surveys to find the fact with evidences.


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