In jellyfish and sea anemones, neurons accumulate DNA damage while animals are awake and repair that damage during sleep.

It’s not uncommon for people to have issues with sleep. Most will get back to regular sleep patterns sooner rather than later. What if the difficulty with sleep does not stop? What if sleep problems ...

It’s hard to overstate the importance of sleep for our well-being. When our sleep is disrupted, we become more susceptible to illness and more likely to suffer cognitive impairment, poor work ...