Articles sur Blue light

Ensemble des articles

Not dark enough. People in bed via

Are we sleep-deprived or just darkness-deprived?

Is electricity making us sleep less? A new study on sleep in preindustrial societies suggests the answer is no. But it misses a big point: people in preindustrial societies spend more time in darkness than we do.
Many people struggle to balance the facts that too much sun exposure results in skin cancer and too little causes vitamin D deficiency. August Allen/Flickr

Should you be worried about getting enough vitamin D?

With daylight saving ending yesterday across most of the country and winter approaching, Australians are moving from fears of too much sun exposure resulting in skin cancer to too little sun exposure and…

Les contributeurs les plus fréquents