Implant uses light to tell your brain you’re not hungry

A new wireless medical implant stimulates the endings of the vagus nerve, which is responsible for the regulation of food intake.

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food brains light health-and-medicine implants body-weight

Colorful light reveals how worms get longer lives

A metabolite called colanic acid can extend the lifespan of worms as much as 50%. New research uses optogenetics to clarify that discovery.

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genes gut-bacteria light optogenetics science-and-technology lifespan

COVID could boost risks for seasonal affective disorder

An expert explains seasonal affective disorder and why this year could be especially tough. She also outlines steps you can take to feel better.

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depression light emotions featured health-and-medicine seasonal-affective-disorder

Mysterious ‘Planet Nine’ may hide in dark corner of space

Is there another planet in our solar system? Researchers are using new techniques with space telescope images to hunt for the theorized Planet Nine.

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space planets light science-and-technology

Mysterious ‘Planet Nine’ may hide in dark corner of space

Is there another planet in our solar system? Researchers are using new techniques with space telescope images to hunt for the theorized Planet Nine.

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space planets light science-and-technology

Light pollution may skew mule deer and cougar dynamic

Light pollution in what is home to some of the darkest night skies in the continental US may change the dynamics between mule deer and cougars.

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cities conservation light earth-and-environment predators

Blue-light glasses improve your sleep and work

Wearing blue-light glasses just before hitting the sack can help you get a better night's sleep and help you work better the next day.

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sleep light jobs science-and-technology health-and-medicine circadian-rhythms

Big-eyed birds need gloom, not bright human landscapes

Brighter areas, such as agricultural land, aren't hospitable to big-eyed birds, research finds. The study links the size of bird eyes, habitat, and foraging style.

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conservation birds light eyes peru earth-and-environment

Tuned lighting helps older adults get a good night’s sleep

Tuned LED lighting that changes color and intensity over the course of a day and night helps older adults in nursing homes get a better night's sleep.

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sleep nursing-homes light older-adults health-and-medicine led

Hyperspectral Stripe Projector creates 4D views

With the new Hyperspectral Stripe Projector, "we're getting four-dimensional information from an image, three spatial and one spectral, in real time."

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optics light cameras science-and-technology imaging-technology