Why Our Brain Erases Memories: The Science of Forgetting

You can't remember what you had for lunch two Tuesdays ago, but you remember in painful detail something embarrassing you said in third grade. That's not your memory failing you — your brain is actively, deliberately erasing things every single day, on purpose. In this video we cover: Why forgetting helps you avoid "overfitting" to the past, according to researchers Paul Frankland and Blake Richards How AMPA receptors get actively removed from your brain cells, discovered by researcher Oliver Hardt Why new neurons in your hippocampus may explain why nobody remembers being a baby The prefrontal cortex mechanism that actively suppresses competing memories How sleep quietly edits your memories through the synaptic homeostasis hypothesis If you've ever felt bad about forgetting something ordinary, this explains why that's not a personal failure. Subscribe for more deep dives into the evolutionary psychology behind the way you think, feel, and behave. #psychology #neuroscience #memory #evolutionarypsychology #brain