Undoubtedly, global warming is a problem facing the world. Environmental damage due to human activities also has a negative impact on living things, including humans themselves.

It’s no secret that global warming brings bad effects to health. One of the latest research reveals that global warming has affected the quality of human sleep in the world. Let’s see the full facts!

1. Involve nearly 50,000 participants in nearly 70 countries

One of the characteristics of global warming is the increase in temperature, especially at night. On the one hand, the phenomenon of worsening sleep quality occurs in various parts of the world. However, the relationship between temperature rise and sleep quality is still unclear.

Published in the journal One Earth on May 20, 2022, Danish researchers used data from sleep measuring bracelets used by 47,628 participants in 68 relatively warm countries, including Africa, Central America, South America and the Middle East. This research lasted for 2 years, from 2015 to 2017.

2. Result: Global warming is taking 44 hours of sleep

Led by the University of Copenhagen , the study entitled ” Rising temperatures error human sleep globally ” also links sleep quality with local meteorological data. Putting aside individual factors, seasons, and time of day, rising temperatures cut sleep time, resulting in sleep deprivation .

As a result, on an annual basis, Danish researchers estimate that the world’s population loses an average of 44 hours of sleep. If the world does not tackle greenhouse gases, then by 2099, the world community is at risk of losing 58 hours of sleep each year. Conversely, if greenhouse gases are controlled, the risk decreases to 50 hours.

3. Who is most affected?

According to the study, the impact of global warming on sleep quality also varies from person to person. People living in low-income countries, women and the elderly are most affected. An increase of 1 degree Celsius at night alone has a two-fold more severe impact on the elderly group.

Can naps replace? Danish researchers found that people took more naps during the day to make up for the lost hours of sleep. Even so, the majority of participants slept easier on warm nights in late summer, compared to early summer.

4. AC can’t be a solution
In the midst of a hot hot day, it is normal for us to turn on the air conditioner (AC). However, according to Danish researchers, air conditioning is not a long-term solution to dealing with sleep disturbances amid global warming.

Kelton and team note that people living in high-income countries are turning to air conditioning to adapt to warm temperatures. Although it is more relief, the high price of air conditioners makes it impossible for everyone to reach. In addition, air conditioning also increases emissions that exacerbate global warming.

5. Should be explored further

As the researchers say, this study is the first to examine the relationship of global warming to sleep quality on a large scale. Can reduce hours of sleep , the consequences are large enough to affect public health in the long term, from mental health to physical health.

Even so, the results of this study are still relatively minimal. According to the study, on a warm night, participants threatened to lose 15 minutes of sleep. This amount is less than 3 percent of the total sleep time, so the effect is not so pronounced.

The researchers also noted that the participants who wore the sleep gauges were generally in high-income countries. So, they have access to technology to reduce heat (such as air conditioning). Therefore, the results of this study may differ in other parts of the world.

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