Medical research

Team untangles the biological effects of blue light

Blue light can both set the mood and set in motion important biological responses. Researchers at the University of Pennsylvania's School of Medicine and School of Arts and Sciences have teased apart the separate biological ...

Neuroscience

Three types of cells help the brain tell day from night

Bright light at night interrupts the body's normal day-night cycles, called circadian rhythms, and can trigger insomnia. In fact, circadian rhythms play a major role in health. Disrupted day-night cycles have even been linked ...

Psychology & Psychiatry

A new method to treat insomnia

Insomnia disorder is the second-most common mental health problem and a major risk factor for depression. Cognitive behavioral therapy for insomnia (CBTi) is the treatment of choice and has successfully been provided through ...

Medical research

Researchers identify brain cells responsible for keeping us awake

Bright light arouses us. Bright light makes it easier to stay awake. Very bright light not only arouses us but is known to have antidepressant effects. Conversely, dark rooms can make us sleepy. It's the reason some people ...

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