Global warming is leading to shorter sleep durations across the world that could increase health risks especially affecting the elderly, women and people in low-income countries, a recent study has found.
Warmer-than-average temperatures eroded human sleep, "primarily by delaying when people fall asleep and by advancing when they wake up during hot weather".
A new study projects that by the end of this century, many could get at least two weeks of short sleep each year due to high temperatures driven by global warming.