Scientists measured air quality in more than 100 homes over two weeks. Study participants were asked to sleep with a window or door open or closed as usual. The researchers tracked their sleep quality and asked the participants to take cognitive tests each morning.
According to one study, good ventilation to keep CO2 levels below 750 ppm has been shown to improve sleep and cognitive performance. Air quality is considered poor if the CO2 concentration exceeds 2600 ppm, negatively impacting sleep and mental performance the next day. Even 1150 parts per million of CO2 can reduce sleep quality. This amount of CO2 is often seen in poorly ventilated bedrooms with closed windows and doors.
Earlier in April, scientists from the Perelman School of Medicine at the University of Pennsylvania and the University of Louisville found a link between outside noise, air pollution and chronic sleep deprivation. The findings of this study highlight the importance of keeping the air clean and fresh for healthy sleep.
Source: Ferra
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