Sleep loss rewires the brain for cravings and weight gain – a neurologist explains the science behind the cycle

You stayed up too late scrolling through your phone, answering emails, or watching just one more episode. The next morning, you feel groggy and irritable. That sugary pastry or greasy breakfast sandwich suddenly looks more appealing than your usual yogurt and berries. By the afternoon, chips or candy from the break room call your name. This isn’t just about willpower. Your brain, short on ...