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by metamet 4158 days ago
This doesn't mention anything about the light promoting wakefulness, but rather simply assesses levels of comprehension: "These dependent measures included subjective (visual) fatigue, a letter search task, reading speed, oculomotor behaviour and the pupillary light reflex."

Staring at a light producing screen all day then not staring at one could still be a good move.

1 comments

Blue light affects circadian rhythm, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831986/