Psychology & Psychiatry

Light therapy may improve symptoms of Alzheimer's disease

Light therapy leads to significant improvements in sleep and psycho-behavioral symptoms for patients with Alzheimer's disease, according to a new study published in PLOS ONE by Qinghui Meng of Weifang Medical University, ...

Health

Blue light creates negative physiological changes during sleep

Extended exposure to light during nighttime can have negative consequences for human health. But now, researchers from Japan have identified a new type of light with reduced consequences for physiological changes during sleep.

Health

Medical myth: Reading from a screen harms your eyes

The time most of us spend looking at a screen has rapidly increased over the past decade. If we're not at work on the computer, we're likely to stay tuned into the online sphere via a smart phone or tablet. Shelves of books ...

Neuroscience

Why animals don't have infrared vision

On rare occasion, the light-sensing photoreceptor cells in the eye misfire and signal to the brain as if they have captured photons, when in reality they haven't. For years this phenomenon remained a mystery. Reporting in ...

Medical research

Red light can reduce blood glucose levels, says study

In a new study appearing in the Journal of Biophotonics, researchers have found that 670 nanometers (nm) of red light stimulated energy production within mitochondria, leading to increased consumption of glucose. In particular, ...

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