I’ve been listening to Andrew Huberman’s podcast lately. He’s a neurologist and ophthalmologist at Stanford. Something that comes up a lot is how much artificia

I’ve been listening to Andrew Huberman’s podcast lately. He’s a neurologist and ophthalmologist at Stanford. Something that comes up a lot is how much artificial light, especially the blue light of screens, affects the eyes, brain, and circadian rhythm. Research has even shown a significant impact on hormone levels. Because of this, I don’t see reading a book on a phone as equivalent to a paper book, or reading news online as a equivalent to a newspaper. The content your brain is processing may be the same, but it has a very different impact on your body and mental state, especially at night. So I think it’s wise to differentiate screen vs. non-screen activities and be more careful about doing the former in moderation, or perhaps only early in the day.