Yet, jellyfish tend to sleep through the night like humans, and even nap around midday. Meanwhile, their close relative, the ...

Ever wondered how your body seems to know it’s time to wake up, even before your alarm rings? That’s not luck, it’s biology. Deep within your brain, an intricate timekeeping system quietly regulates ...

Tumours in circadian-disrupted models were also far more aggressive and far more likely to spread to the lungs, a key indicator of poor outcomes in breast cancer patients. At the same time, disruption ...

Before electricity and endless screen time took over, humans followed a very different rest routine. In the pre-industrial world, people didn’t sleep in one uninterrupted stretch but in two distinct ...

Most biochemical reactions accelerate as temperature increases, but our daily circadian rhythms, which are underlain by gene regulatory and biochemical networks, remain constant, even as temperatures ...

Ever wonder why some mornings you wake up ready to go, and others you feel like a zombie? The difference often comes down to when you wake up during your sleep cycle, and that’s exactly what a sleep ...

NEW YORK — It’s a question that keeps some scientists awake at night: Do spiders sleep? Daniela Roessler and her colleagues trained cameras on baby jumping spiders at night to find out. The footage ...

A month with the Apple Watch, along with its gentle nudges and a doctor’s guidance, helps the writer build a healthy sleep ...