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THE KEY TO LONGEVITY?

Wednesday, November 29, 2023

In today’s newsletter, we pick up our gait to live longer, learn what magnesium does for sleep and anxiety, discover an animal that gets better in its 80s and 90s ... and learn what causes frozen shoulder?

Nanae Takaishi (99) doing exercises in the dressing room of “Shinseiyu”, a bathhouse in Shinagawa ward in Tokyo. The bathhouse was opened in 1952 as a neighborhood public bath for local residents.

PHOTOGRAPH BY NORIKO HAYASHI, NAT GEO IMAGE COLLECTION

How fast do you walk? Until I read this article, I didn’t realize how important that could be to your future.

You don’t have to be a race-walker, but you can make little adjustments in your gait that can help you move a bit faster and smoother.

Moving is the most important part. And stretching (above, 99-year-old Nanae Takaishi). What do we know?

WHAT WE’VE LEARNED

STORIES WE’RE FOLLOWING

An MRI scan showing partial tears in a shoulder tendon

PHOTOGRAPH BY K H FUNG, SCIENCE PHOTO LIBRARY

Frozen shoulder is a thing, and can be caused by partial tears in the shoulder's tendon, as shown in this MRI (above)

These fish live past 100 years old—and get stronger into their 80s and 90s

Can too many ultra-processed foods lead to cognitive decline? New studies show that they can.

This Tuscan spa town offers ancient history and healing waters

What archaeology can tell us about the real Jesus

Will these leafy greens make you sick?

COVID can interfere with your period in many ways

These are the happiest places in the world

IN THE SPOTLIGHT

A sample of the earth metal Magnesium appears like a glossy, metal nugget.

PHOTOGRAPH BY SCIENCE PHOTO LIBRARY

Sleep and magnesium: This essential mineral (above) is important for the body—but it doesn’t work miracles. Here’s what the experts say about magnesium’s powers, particularly via sleep and anxiety.

WHAT IN THE WORLD?

PHOTOGRAPH BY JOEL SARTORE, NATIONAL GEOGRAPHIC PHOTO ARK

Pop quiz! Nat Geo’s photo collection of vulnerable animal species has passed a new landmark—15,000!—with this rare, recently rediscovered insect. What critter is it?

A. The blister beetle
B. Miami tiger beetle
C. Käfer Floridus
D. DC Blue Beetle

CLICK FOR THE ANSWER

PHOTO OF THE DAY

This jaguar makes a precise incision on this caiman’s vulnerable neck for a nasty dinner.

PHOTOGRAPH BY STEVE WINTER

Don't mess with a jaguar: For today’s International Jaguar Day we profile the land, sea and tree-prowling hunter whose diet includes more than 85 species, including this caiman (above). This prelude to a satisfying dinner was captured by Nat Geo Explorer (and big cat photographer extraordinaire) Steve Winter.

ALL ABOUT JAGUARS

Today’s soundtrack: Satisfied, Renée Elise Goldsberry (from Hamilton)

Thanks for reading today’s newsletter! It was curated and edited by Jen Tse, Nancy San Martín, and David Beard. Have an idea for us? Let us know! See you tomorrow!

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