Michaeleen Doucleff

Back in the early 1990s, psychologist Suzanne Gaskins was living in a small Maya village near Valladolid, Yucatán, when she struck up a conversation with two sisters, ages 7 and 9.

The girls started telling her — with great pride — about all the chores they did after school. "I wash my own clothes," the 7-year-old said. The older sister then one-upped her and declared, "I wash my clothes and my baby brother's clothes."

Six months ago, Melissa Nichols brought her baby girl, Arlo, home from the hospital. And she immediately had a secret.

"I just felt guilty and like I didn't want to tell anyone," says Nichols, who lives in San Francisco. "It feels like you're a bad mom. The mom guilt starts early, I guess."

Across town, first-time mom Candyce Hubbell has the same secret — and she hides it from her pediatrician. "I don't really want to be lectured," she says. "I know what her stance will be on it."

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LULU GARCIA-NAVARRO, HOST:

There's no other way to put it: Maria de los Angeles Tun Burgos is a supermom.

She's raising five children, does housework and chores — we're talking about fresh tortillas every day made from stone-ground corn — and she helps with the family's business in their small village about 2 1/2 hours west of Cancún on the Yucatán Peninsula.

A hundred years ago, the world was struck by a nightmare scenario.

World War I was still raging. And then a suspicious disease appeared.

Scratch another Guinea worm hot spot off the list.

One of the countries hardest hit with the parasite — South Sudan — has finally stopped transmission, the Carter Center announced Wednesday.

The country reported zero cases in 2017 and hasn't had a case in 15 months. There are also no signs Guinea worm is circulating in dogs in South Sudan, as it is in Chad and Mali.

If you want to cut your risk of catching the flu on your next flight, pick a window seat and stay put.

That's a key take-home message of a study published Monday in the Proceedings of the National Academy of Sciences.

To see if you're bending correctly, try a simple experiment.

"Stand up and put your hands on your waist," says Jean Couch, who has been helping people get out of back pain for 25 years at her studio in Palo Alto, Calif.

"Now imagine I've dropped a feather in front of your feet and asked to pick it up," Couch says. "Usually everybody immediately moves their heads and looks down."

Earlier this week, we shared the remarkable story of Abby Beckley — and her run-in with eye worms.

When this young woman felt something crawling around in her eyes, she had the presence to remove said worm and then, over the course of a few weeks, not one, not two nor three ... but 14 nematodes came out from her eye.

At first doctors didn't believe her. Then they saw one squiggle across her eyeball.

On Christmas Day last year, a 68-year-old woman in southern China came down with the flu. A week later she was hospitalized.

The woman eventually recovered, but she spent three weeks in the hospital.

The culprit? H7N4, a new type of bird flu.

"This is the first case of human infection with avian influenza A (H7N4) in the world," the Hong Kong Centre for Health Protection said Wednesday in a statement.

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