Sleep quality may decrease as global temperatures rise

  • Researchers studied the effects of temperature on sleep quality using wearable sleep tracking devices.
  • They found that higher nighttime temperatures are associated with poorer sleep quality worldwide.
  • The study concluded that climate change is expected to erode sleep and increase global inequalities.

Reduced sleep quality affects humans Mental health and cognitive function.

some flashbacks, Self-Assessment Studies indicate that sleep quality decreases in warm weather. However, you may lack of reliability based on memory rather than objective standards.

It therefore remains unknown whether outside temperatures affect the quality of sleep.

Recently, researchers analyzed a global sample of sleep data from sleep-tracking bracelets.

They found that increased outside temperatures are associated with shorter sleep durations.

“Studies from multiple disciplines have repeatedly shown that poor sleep is associated with a range of negative health outcomes, from reduced immune function to worsened cardiovascular outcomes and poorer mental health,” he said Marshall Burke, Ph.D.Associate Professor of Earth System Science at Stanford University, who is not involved in the study.

“Poor sleep also reduces performance at work and school. The fact that temperature effects are so widespread and that hot nighttime temperatures will become more common in the coming decades makes these results very important,” said Prof Burke Medical news today.

The study was published in one earth.

For their study, the researchers examined 10 billion sleep observations, including over 7 million repeated daily sleep recordings, from 47,628 adults in 68 countries on every continent except Antarctica. These observations included nocturnal sleep duration and sleep timing: onset, mid-sleep, and skips.

The researchers then compared this data to geolocated weather and climate data.

They found that an increase in nighttime temperature decreases sleep duration regardless of location, and that the effects increase as temperature rises.

They found that the probability of sleeping less than 7 hours gradually increases to 10°C and when the temperatures are exceeded 10°C increases the likelihood of sleep deprivation at an increased rate.

Night temperatures above 25°C were associated with 14 minutes less sleep than those who slept in temperatures below 10°C

Certain population groups were more affected than others. A one degree Celsius increase in minimum temperature had twice the impact on older people than other groups.

People in poorer countries were almost three times more affected than people in wealthier countries, and women were significantly more affected than men.

They further found that humans do not adapt to sleeping in warmer temperatures, meaning sleep quality is generally poorer in warmer climates than in cooler ones.

How does the outside temperature affect the quality of sleep? Experts say it depends on several factors.

“High temperatures can increase arousal and decrease deep sleep, which is the physically restorative phase of sleep,” he said Prof Tony CaponDirector of the Monash Sustainable Development Institute, not involved in the study.

Nick Franks FRSProfessor of biophysics and anesthesia at Imperial College London, also not involved in the study, said MNT that there is a well-established connection between body temperature and sleep.

Prof Franks said causal links could be “difficult” to find as there are many possible variables.

Nevertheless, the researchers found that the effects increased older adults could be due to a weakened thermoregulatory response to ambient temperatures, producing greater sensitivity to rising nighttime temperatures.

Slight sex differences between males and females, they wrote, may appear as females tend having thicker subcutaneous fat than males, potentially affecting nocturnal heat loss.

Also, females core body temperatures in the evening earlier than men, which means that women are exposed to higher ambient temperatures at the beginning of sleep.

“Sleep deprivation can impair judgment and increase the risk of injury while driving or using other machines. Chronic sleep deprivation increases the risk of other health problems, including obesity, diabetes, high blood pressure and depression,” noted Dr. capon

dr Alison Hwong, Ph.D.A fellow at the University of California San Francisco’s Weill Institute for Neurosciences, not affiliated with the study, told MNT:

“Long-term, reduced sleep time can contribute to an increased stress response, impair memory consolidation, and impair the immune system. Adequate sleep is important for healthy development, repair and recovery.”

“As a psychiatrist, I am concerned about the negative effects of sleep deprivation on mental health. For example, sleep deprivation can trigger manic episodes in people with bipolar disorder and worsen mood in people with depression,” she added.

“Additionally, antipsychotic drugs can disrupt thermoregulation, so people taking these drugs may have more trouble sleeping in warming temperatures,” she explained.

“There will need to be prevention, monitoring and outreach to vulnerable groups such as children, the elderly, the homeless and those with serious mental illness,” she continued.

The researchers conclude that their findings have significant implications for adaptation planning, policy and research.

When asked about the limitations of the results, Ed Harding Ph.D.Postdoctoral neuroscientist at the Wellcome-MRC Institute of Metabolic Science, University of Cambridge, also not involved in the study, said MNT:

“We should keep in mind that people who chose to wear sleep trackers are likely to be wealthier than the per-country income data used in this study and have better access to accommodations such as air conditioning, so the effect is quite significant.” is possible to be underestimated.”

dr Burke added: “It would be great if future studies could somehow collect more data in many low-income regions of the world [as] Africa has almost no coverage in their data.”

“It would also be great to collect more data on sleep quality rather than just quantity, as eroded sleep quality could be an alternative mechanism by which higher nighttime temperatures could impact health and economic outcomes.”

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