"We find that air pollution impairs verbal tests, and the effect becomes stronger as people age, especially for less educated men", it read.
Dirty air shortens the life Scientists of the University of Texas at Austin (USA) found that global air pollution reduces life expectancy of the average person for a year.More news: LG Announces Its First Android One Smartphone - LG G7
According to the study, cognitive problems can lead to other health problems, including dementia.
Even Indian researchers have done it through various approaches and even if the results might differ by certain percentages depending on the methodologies adopted, the fact remains that there are people who are dying prematurely due to air pollution, it said.
"Our findings on the damaging effect of air pollution on cognition imply that the indirect effect of pollution on social welfare could be much larger than previously thought", Zhang added.
The result of that action, if allowed to stand, will subject all USA citizens to higher levels of air pollution in the name of boosting profits for fossil fuel companies.More news: England vs India, fourth Test day one
The study, with a sample size of almost 32,000, examined the relationship between cognitive test scores, taken from the nationally representative China Family Panel Studies longitudinal survey conducted in 2010 and 2014, with short- and long-term air pollution exposure calculated from official air pollution index values. Differences between male and female brains may also account for this difference, the study said.
The shock figures come as 90% of the world's urban population is now breathing in unsafe levels of air pollution.
China's largest cities are among the world's most polluted based on air quality.
A good number of India's most polluted cities are not too keen to clean up their act, according to a list maintained by the Central Pollution Control Board (CPCB). It is alarming that more than 8,500 children die every year in the country from diseases caused by indoor air pollution.More news: More floods threaten Hawaii as tropical Storm Lane drifts away