Night skyTurns out that while some of us have different “chronotypes,” or natural predispositions towards being either night owls or early birds, some research suggests we should all try to nod off before a certain point anyway. “To age healthily, individuals should start sleeping before 1am, despite chronobiological preferences,” the 2024 paper read.And a 2021 study published in the European Heart Journal suggested there’s a “golden hour” bedtime for heart health too.The cohort study, which looked at 88,000 UK Biobank participants who were aged between 43 and 74, monitored participants’ sleep for a week before monitoring their heart health status over an average of 5.7 years.They found that those who fell asleep between 10-11pm seemed the least likely to develop heart issues in that time.