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As climate change accelerates, the effects extend beyond natural disasters and extreme weather—it’s also robbing us of a good night’s sleep. Increasing temperatures, worsening air pollution, extreme weather events, and rising climate anxiety are all contributing to sleep disturbances, which in turn can have significant impacts on overall health.
The Importance of Sleep
Sleep is more than just rest; it’s crucial for physical and mental well-being. Adults require at least seven hours per night to maintain cognitive function, emotional stability, and overall health. Poor sleep can lead to an increased risk of obesity, diabetes, depression, cardiovascular diseases, and even premature death.
How Climate Change Affects Sleep
1. Rising Nighttime Temperatures
Our bodies rely on a drop in core temperature to fall into restful sleep. The ideal sleeping environment is between 15°C and 19°C, but rising global temperatures are making it increasingly difficult to achieve this. Research shows that people lose about 12 minutes of sleep per night on the hottest nights compared to cooler ones. If global warming continues unchecked, scientists estimate that people could lose up to 58 hours of sleep per year by the end of the century.
2. Increased Air Pollution
Climate change is exacerbating air pollution by fueling wildfires and increasing heatwaves, which in turn release harmful airborne particles. These pollutants are linked to respiratory issues, inflammation, and sleep disruptions. Additionally, during colder months, wood-burning stoves contribute further to air pollution, worsening conditions such as asthma and chronic bronchitis that can disturb sleep.
3. More Frequent Extreme Weather Events
Heatwaves, hurricanes, wildfires, and floods are becoming more common, forcing communities to evacuate or endure prolonged power outages and unsafe conditions. Studies indicate that individuals who have experienced natural disasters often suffer from prolonged insomnia and post-traumatic nightmares for months after the event.
4. Rising Climate Anxiety
Even those who haven’t directly experienced climate disasters can struggle with sleep due to growing concerns about climate change. The continuous exposure to climate-related news has led to a rise in “climate anxiety,” an existential dread that is keeping people awake at night. Studies suggest that these fears are linked to higher rates of insomnia, sleep disturbances, and overall stress.
How to Improve Sleep Despite Climate Change
While global solutions are necessary to mitigate climate change, individuals can take steps to improve sleep quality:
Environmental Adjustments:
- Sleep in the coolest part of the house.
- Close curtains during the day to block heat from sunlight.
- Use fans to improve air circulation and evaporate sweat.
- Choose light, breathable bedding made from natural fibers.
- Open windows at night if outside temperatures drop.
Personal Habits:
- Take a cool shower before bedtime to lower body temperature.
- Schedule exercise earlier in the day to avoid raising body heat at night.
- Wear lightweight, natural-fiber clothing to bed.
- Keep a spray bottle or damp towel nearby to cool off.
- Stay hydrated but avoid heavy meals before sleeping.
As climate change continues to impact daily life, prioritizing sleep through practical adjustments can help maintain well-being. Meanwhile, advocating for policies that address climate change can contribute to long-term solutions for a healthier planet and better sleep.
Disclaimer: This article is for informational purposes only and should not be considered medical advice. If you experience ongoing sleep issues, consult a healthcare professional.
