Sleep and light
4 guides. Each one sets out the rules, grades the evidence for every claimed outcome and shows who backs or doubts it.
- Morning sunlightMorning sunlight is the practice of getting outdoor daylight into your eyes soon after waking, usually for 5 to 30 minutes, to set the body clock.Promising
- Mouth tapingMouth taping means putting a strip of tape over your lips at night so you breathe through your nose.Debated
- Red light therapyRed light therapy, or photobiomodulation, exposes skin to low-power red (about 630 to 670 nm) or near-infrared (about 780 to 950 nm) light, usually from LEDs.Debated
- Sleep consistencySleep consistency means going to bed and waking up at about the same times every day, weekends included.Promising