Blue light makes you more alert, so it is best to stop working on a screen well before going to sleep. But blue light can also affect how much you eat.
Light and your appetite
15 minutes after exposure to blue light, the feeling of hunger in the subjects of a study in this area increased. The effect lasted for no less than two hours. The test subjects therefore ate more. When they ate under dim lights, they ate a lot less.
No hard evidence
The study was only conducted on 10 people. So there is no hard evidence, but from now on we like to eat under romantic dim lights…
