National Geographic | Mind, Body, Wonder

This week, we look at a fast-spreading bird flu’s jump to mammals, deal with daylight saving sleep disruption ... and discover the life-and-death dangers of overcaffeination. Plus, a big reason to get tidy, where headaches come from, and why some men use horny goat weed.

Coffee splashing out of a clear mug

PHOTOGRAPH BY REBECCA HALE, NATIONAL GEOGRAPHIC

PUT THAT COFFEE DOWN RIGHT NOW!

A new study shows a potentially fatal downside of the world’s pick-me-up—and finds surprisingly few benefits. Also, check to see if that lemonade or carbonated water has caffeine in it.

GOT THE JITTERS?

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In China, the search for the perfect cup of tea

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How to get high on your own hormones—naturally

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Ultra-processed foods hurt your body AND mind

A boy sleeping with the light on in Sweden

PHOTOGRAPH BY MAGNUS WENNMAN

ARE YOU A LARK OR AN OWL?

Early-riser, late-riser: Which are you? Everybody may have a little problem with daylight saving time, but your body holds the answer to the early/late question.

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Women are more likely to be sleep deprived? Here’s why that’s bad.

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How magnesium affects your sleep and anxiety

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Is melatonin safe, and can it affect your dreams?

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Adjusting sleep to daylight saving time—and other sleep tips

The trapezius muscle is shown red in this computer illustration

ILLUSTRATION BY SEBASTIAN KAULITZKI, SCIENCE PHOTO LIBRARY

GOT A HEADACHE? LOOK AT YOUR NECK.

From here to there: New research links neck pain and inflammation with migraine and
tension-type headaches. Treating neck pain may be key to relieving both conditions.

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Scientists are unraveling the mysteries of pain

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What causes morning migraines? Researchers are closing in on the source.

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Why exercise keeps the brain healthy

A messy office with stacks of paperwork, plants, and file drawers

PHOTOGRAPH BY LAURIE RUBIN, GETTY IMAGES

A TIDY HOME WILL MAKE YOU FEEL BETTER

A slew of studies show a clean house can boost your mood and productivity and reduce stress and anxiety. So why is it so hard?

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Shoes on or off inside the house? One choice is better.

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‘Forever chemicals’ are hiding in your kitchen. Here’s where—and what you can do about it.

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First person: I walked outside—and let my backyard go wild

The FDA considers BPA “an indirect food additive” because it readily leaches into food from plastic packaging.

PHOTOGRAPH BY REBECCA HALE, NAT GEO IMAGE COLLECTION

‘BPA-FREE’ CAN BE HARMFUL, TOO

Many products in the supermarket proudly display a “BPA-free” label. But scientists say the substitutes may be just as harmful—in miniscule quantities, harming the brain, liver, and reproductive system in both men and women and increasing the risk of diabetes, heart disease and more.

READ THE FINE PRINT

READ MORE TOP STORIES FROM NAT GEO

A particularly pathogenic type of bird flu is spreading. What is it and what does it mean for us?

What's horny goat weed? How is it supposed to help men?

Do collagen supplements really work?

The mystery of the Coast Salish woolly dog

What is cortisol—and should you actually be worried about it?

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