Huberman Lab: Dr. Alan Castel on Memory, Aging, and Cognitive Sharpness

Memory is not just recall—it’s a trainable skill shaped by learning, emotion, sleep, and age. In this summarized episode of Huberman Lab, Andrew Huberman and UCLA memory researcher Dr. Alan Castel unpack how mistakes, struggle, and metacognition improve learning, why names often matter less than meaningful understanding, and how habits like curiosity, movement, social connection, and quality sleep support cognitive function and healthy aging. You’ll also learn why confidence can mislead eyewitness testimony, how emotional arousal changes what we remember, and what superagers do differently to stay mentally sharp. Original episode length: full-length conversation; new version: a concise, time-saving summary in minutes. Listen now to get the key ideas in minutes.