You can blame climate change for the sleepless nights! Here's what a new study says
Climate change can affect your sleep – and not just because you're awake worrying about it.
A new study shows that warmer temperatures increase the risk of insufficient sleep.
As global warming worsens, so does our ability to get a good night's sleep, according to researchers.
You've probably experienced trouble sleeping when it's too hot. Now there's evidence to show you're not alone.
Researchers collected over 7 million nightly sleep data from more than 47,000 people in 68 countries between 2015 and 2017.
Controlling for individual factors, seasonal and temporal trends, they found that high temperatures shorten sleep.
On very warm nights - with temperatures above 30°C - they found that people slept an average of 14 minutes less. The probability of sleeping less than seven hours increases gradually up to 10°C, before increasing at a high rate.
If we continue to emit greenhouse gases at our current rate, by 2100 each person could face an average of two weeks of shortened sleep per year, researchers found.
People are already losing about 44 hours of sleep a year due to higher temperatures, they estimate.
The study was published this month in the peer-reviewed scientific journal One Earth.