Yes, your brain does live a little in the past. It can’t help it. The information it receives via your senses is always a little out of date. Whether it’s light entering the retinas in your eyes, or s

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Steve Ramirez knows how devastating painful memories can be. In 2015, when he was a doctoral candidate working on manipulating memories in mice, his close friend and lab partner, Xu Liu, died unexpect

Amazing answers to your curious questions

ONE ICY MORNING IN FEBRUARY, nearly 200 people gathered in a church in downtown Richmond, Va. Most had awakened before dawn and driven in from across the state. There were Republicans and Democrats fr

With more and more men -and women -turning to AI companions for romantic relationships, what does it mean for the future of our love lives? And what happens when artificial intelligence indulges even the darkest of fantasies? Cosmo features editor Jennifer Savin found out