Andrew Huberman· PhD
I was taught in my Psychology and Neuroscience textbooks because it was right there in front of me that there were some core categories of facial expression that were Universal across cultures that conveyed something about the internal state of the person that the downward you know lips in the corner and and some and maybe even a furrowing of the brow was associated with negative veent States like sadness perhaps even depression that the opposite of upward turn corners of the mouth and widening of the eyes was delight and excitement