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Denna sidan visar ordspråk som liknar "Fluorescent works on a flicker that goes on 50 to 60 times a second. Recent research has discovered that the eye-brain connection can see 50 to 80 times a second, so on a subconscious level the brain is seeing that flicker, which explains why people who work in these fluorescent-lit offices have headaches or eyestrain by the end of the day.".