Notes on darkness
Why nothing should touch your eyes
Most masks solve darkness by pressing fabric flat against your face. That works, and it costs you something: pressure on the eyelids for seven hours, skincare wiped off, lashes flattened,...
Why nothing should touch your eyes
Most masks solve darkness by pressing fabric flat against your face. That works, and it costs you something: pressure on the eyelids for seven hours, skincare wiped off, lashes flattened,...
Sleep shows on your face, and it has been measured
Researchers have photographed people after normal sleep and after restriction, then asked strangers to rate the faces. The sleep-deprived versions were consistently rated as having darker circles under the eyes,...
Sleep shows on your face, and it has been measured
Researchers have photographed people after normal sleep and after restriction, then asked strangers to rate the faces. The sleep-deprived versions were consistently rated as having darker circles under the eyes,...
What light does to melatonin
Melatonin is not a sleep drug your body makes. It is a signal that tells the rest of you the sun has gone down.That signal is triggered by darkness and...
What light does to melatonin
Melatonin is not a sleep drug your body makes. It is a signal that tells the rest of you the sun has gone down.That signal is triggered by darkness and...
Your bedroom is probably not dark enough
In 2022, researchers at Northwestern put healthy young adults to sleep in two conditions: a dim room at 3 lux, and a moderately lit room at 100 lux. Roughly the...
Your bedroom is probably not dark enough
In 2022, researchers at Northwestern put healthy young adults to sleep in two conditions: a dim room at 3 lux, and a moderately lit room at 100 lux. Roughly the...