Rising temperatures are having a devastating impact on sleep health worldwide, with the prevalence of sleep apnea expected to triple as nights get hotter. Researchers warn that this increase in sleep apnea events will disproportionately affect vulnerable populations and exacerbate existing health disparities.
In Australia's South Australian city of Adelaide, local researchers found that sweltering nighttime temperatures, such as 34.1 degrees Celsius, are linked to a greater risk of hospitalization for cardiovascular and mental health conditions. To investigate the impact of warming world on human sleeping patterns, the scientists conducted a study using under-mattress sleep sensors.
Their findings revealed that higher nighttime temperatures not only reduce the number of hours slept but also disrupt regular sleep patterns. Moreover, every 10 degrees Celsius increase in daily temperature resulted in an 8.4 percent increase in sleep apnea events in Chinese data collected from 51,842 people across 313 cities over three years.
Experts suggest several reasons for this correlation: high temperatures impair the body's ability to cool down at night, leading to lighter and more fragmented sleep; heat can influence behavior, making people more likely to drink alcohol, consume a poor diet, and engage in less physical activity, all of which are known risk factors for sleep apnea.
Physiologically, heat may also destabilize breathing control, increase fluid retention, and promote dehydration, further increasing the likelihood of sleep apnea. The researchers warn that those living in cities, particularly those exposed to high levels of air pollution, are already more likely to experience sleep apnea due to its chronic impact on nighttime breathing.
To mitigate these risks, experts recommend using indoor air filtering devices if online air quality databases show poor ratings and losing weight may be beneficial in reducing the risk of sleep apnea events. However, this is not without risks; men and individuals with preexisting mental health or sleep disorders are particularly vulnerable to sleep apnea in hot weather.
The Flinders University team aims to develop personalized advice and heat-warning systems for those at greater risk of experiencing sleep apnea events during heatwaves. Ultimately, their goal is to provide practical, evidence-based recommendations that can be applied during heat waves, particularly for vulnerable groups and people at higher risk.
In Australia's South Australian city of Adelaide, local researchers found that sweltering nighttime temperatures, such as 34.1 degrees Celsius, are linked to a greater risk of hospitalization for cardiovascular and mental health conditions. To investigate the impact of warming world on human sleeping patterns, the scientists conducted a study using under-mattress sleep sensors.
Their findings revealed that higher nighttime temperatures not only reduce the number of hours slept but also disrupt regular sleep patterns. Moreover, every 10 degrees Celsius increase in daily temperature resulted in an 8.4 percent increase in sleep apnea events in Chinese data collected from 51,842 people across 313 cities over three years.
Experts suggest several reasons for this correlation: high temperatures impair the body's ability to cool down at night, leading to lighter and more fragmented sleep; heat can influence behavior, making people more likely to drink alcohol, consume a poor diet, and engage in less physical activity, all of which are known risk factors for sleep apnea.
Physiologically, heat may also destabilize breathing control, increase fluid retention, and promote dehydration, further increasing the likelihood of sleep apnea. The researchers warn that those living in cities, particularly those exposed to high levels of air pollution, are already more likely to experience sleep apnea due to its chronic impact on nighttime breathing.
To mitigate these risks, experts recommend using indoor air filtering devices if online air quality databases show poor ratings and losing weight may be beneficial in reducing the risk of sleep apnea events. However, this is not without risks; men and individuals with preexisting mental health or sleep disorders are particularly vulnerable to sleep apnea in hot weather.
The Flinders University team aims to develop personalized advice and heat-warning systems for those at greater risk of experiencing sleep apnea events during heatwaves. Ultimately, their goal is to provide practical, evidence-based recommendations that can be applied during heat waves, particularly for vulnerable groups and people at higher risk.