What staying up all night does to your brain

Kabilan on Instagram: "🥰 Déjà vu is the strange sensation of reliving a moment you are experiencing for the first time. The term comes from French, meaning “already seen,” and most people encounter it at least once in their lives. Scientists explain it as a memory-processing glitch: the brain mistakenly tags a present experience as something stored in the past. This can happen because of tiny timing mismatches between perception and memory, or when our brain unconsciously predicts outcomes base