Eye to brain: An early marker for dementia?

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HOW YOUR EYES MAY REVEAL EARLY SIGNS OF DEMENTIA

Thursday, April 6, 2023

In today’s newsletter, we learn about potential early Alzheimer’s detection, explore Montenegro’s sacred spaces, build a better diet … and visit the fastest-warming place on Earth. Plus, psychedelic use 3,000 years ago?

PHOTOGRAPH BY JASON EDWARDS, ALAMY

Where might be one of the earliest markers of dementia? Look to the eye—specifically, the inner layer of the retina, particularly in the periphery, the region furthest from the center of the eye (above, a digital retinal scan of a human eye).

A new study focused on the area, the only part of the central nervous system that you can see directly in a living person. The study advances attempts to detect dementia early, when there is a better chance to slow cognitive impairment. What did it find? How will it help early treatment?

Read the full story here.

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STORIES WE’RE FOLLOWING

PHOTOGRAPH BY CLEMENS ZAHN, LAIF/REDUX

Explore Montenegro’s monasteries, like the above Serbian Orthodox church carved into a rock face

Evidence shows these humans took psychedelic drugs… 3,000 years ago

Eat these foods for a stronger and healthier brain

Here’s how England‘s ‘lost king’ ended up beneath a parking lot

Take a tour of Northern Ireland—with a little help from the ‘Derry Girls’

Simply cutting carbs and fat is not a guarantee for losing weight

What science says about stopping your hiccups

Does losing weight lead to better health? Not necessarily.

You know how the ‘Titanic’ sank. But did you know its origin story?

IN THE SPOTLIGHT

PHOTOGRAPH BY STEFANO UNTERTHINER

Too hot too fast: Photographer Stefano Unterthiner spent a year documenting wildlife in Svalbard, a Norwegian archipelago in the Arctic Ocean, the fastest-warming place on earth. Finding geese, fox, reindeer, and bears, he fears most species won’t be able to evolve with the rapid climate changes. (Above, an arctic fox looks for scraps on a reindeer carcass.)

PHOTO OF THE DAY

PHOTOGRAPH BY KWAME BRATHWAITE

A life remembered: Renowned photographer Kwame Brathwaite created movements, most notably ‘Black is Beautiful.’ He photographed Muhammad Ali, Nelson Mandela, his children, his wife (pictured above). No matter the subject, “the spirit of joy prevails in the frame,” writes Brathwaite’s son for Nat Geo. Brathwaite died at age 85. See what he saw during his career.

A LOOK AT HIS LIFE

Today’s soundtrack: Diamonds, Rihanna

We hope this newsletter brightened your Thursday! It was curated and edited by David Beard, Hannah Farrow, and Jen Tse. Have a story idea? Let us know here. Know a friend who might want our newsletter in their inbox? Here’s the signup. See you tomorrow!

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Eye to brain: An early marker for dementia?

Eye to brain: An early marker for dementia?

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