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YOUR HEADACHE DIDN’T START
IN YOUR HEAD

Friday, March 8, 2024

In today’s newsletter, we figure out where your headaches really come from, find out why daylight saving time still exists, meet the ‘Countess of Computing’ … and learn how to take immense photographs of tiny creatures. Plus, science says you can have too much coffee.

The trapezius muscle is shown red in this computer illustration

ILLUSTRATION BY SEBASTIAN KALUITZKI, SCIENCE PHOTO ARCHIVE

Nora Ephron once wrote a book entitled I Feel Bad About My Neck: And Other Thoughts on Being a Woman. Turns out a pain in the neck can trigger a number of things—and may be the root of two specific types of headaches plaguing all kinds of people.

Do you have inflammation in this area (shown above)? A new study shows that could indicate how often you have these types of headaches. Which types?

STORIES WE’RE FOLLOWING

An aerial view of the Deer el Bahri temple site, in the desert, with a sun setting casting orange light on the sand.

PHOTOGRAPHY Y RATNAKORN PIYRASIRISOROST/ GETTY IMAGES

Can a temple (pictured above) that stood the test of time tell us who this female Egyptian pharaoh was?

You actually can consume too much caffeine. Here are the risks.

Why does daylight saving time still exist?

The roots of today’s International Women’s Day are more radical than you think

Is BPA-free free of those toxins? Um, maybe not.

Vanished: the disappearing dog breed in the Pacific Northwest

’Horny goat weed’ and six herbs that may be beneficial to men’s health

They took Manhattan. It wasn't just $24

Bird flu is spreading pole to pole. Here’s what you need to know

From house arrest to the Oscars: Will a documentary on democracy leader Bobi Wine win?

IN THE SPOTLIGHT

A portrait of Ada Lovelace from 1835, aged about 20

PHOTOGTAPH BY IAN DAGNALL COMPUTING/ ALAMY

Who wrote the first computer program? Daughter of poet Lord Byron and mathematician Annabella Milbanke, Ada Lovelace followed in her mother’s footsteps to become the world’s first programmer with the algorithm she wrote for Charles Babbage’s Analytical Engine in 1843. Here’s how she did it.

COUNTESS OF COMPUTING

PHOTO OF THE DAY

A close-up of a hummingbird's eye

PHOTOGRAPH BY ANAND VARMA

Macro photography … of micro creatures? Photographer and Nat Geo Explorer Anand Varma specializes in macro photography. He uses his lens to capture the minute details of some of the world’s smallest creatures. Here are his tips on photographing a small world.

CAPTURING DETAILS

Related: The Nat Geo book Invisible Wonders: Photographs of the Hidden World, curated by Varma
Podcast: How I learned to love zombie parasites

Today’s soundtrack: Headache, Frank Black

Happy weekend! This newsletter has been curated and edited by Nancy San Martín, Jen Tse, Nishita Naga, and David Beard. Know someone who might want our newsletter in their inbox? Here’s the signup. Did you find our story on headaches helpful? Let us know!

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