Andrew Huberman· PhD
so we break down smartphone use in these uh young girls that correlates with and maybe is causal for this diminishment in mental health there are a number of different variables right there's the time spent on the phone there's the specific content that they're viewing and that's a vast discussion that we'll get into there are the social dynamics associated with being on a phone as opposed to in-person interactions and then there's and I can't help myself myself but as a neuroscientist who trained in the biology the visual system there's the effect of looking at something at about 8 in to 12 in away from you for much of the day as opposed to navigating an environment the way that we had for hundreds of thousands of years prior