The theory is that your body’s circadian rhythm reacts to blue light, so lowering the amount of blue light makes it less likely to disrupt that rhythm.
Last I was aware the actual evidence was a mixed bag.
So you react to both red light and blue light, but you react to blue light way better than to red. So blue light filters still checks out, but they’re more of a mitigation than a fix
The theory is that your body’s circadian rhythm reacts to blue light, so lowering the amount of blue light makes it less likely to disrupt that rhythm.
Last I was aware the actual evidence was a mixed bag.
So you react to both red light and blue light, but you react to blue light way better than to red. So blue light filters still checks out, but they’re more of a mitigation than a fix