Around 17-24 hours after waking (shift workers or students): Option 1) limit bright light to just enough that allows you to complete work to keep sleep and metabolism in the best shape possible; Option 2) if you want/need to be very alert, make the environment as bright as possible
- It’s most ideal to stay awake during the day and sleep at night
- All-nighter tip: drink a lot of water and don’t let yourself go to the bathroom