Blue light has been getting blamed for sleep interruption and eye strain. But the facts are that any bright light interferes with sleep, and computers themselves cause eye strain, an eye doctor says.
Many adolescents have trouble sleeping - but limiting screen use is not the solution. When used correctly, bedtime use of devices can be beneficial to mental health, without harming sleep quality.
Our veins only appear blue through the skin, they’re actually red.
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Gaining a better sense of what genes are involved in regulating circadian clocks could put us on a path to find better treatments and therapies to help people adjust to time shifts.
Disase carrying insects are attracted to light bulbs – a constraint of domestic solar energy.
Jon Nazca/Reuters
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.
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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…