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PHOTO: Two children watch TV in this stock photo.
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Too much screen time, too little sleep and exercise linked to worse cognitive development in children: Study

PHOTO: A woman works alone in an office, in a stock photo.
STOCK PHOTO/Getty Images

A third of American adults age 45 and over are lonely, national survey finds

PHOTO: The shadow of Sen. Lindsey Graham is cast on a photograph of heroin and fentanyl during a news conference at the Capitol, March 22, 2018 in Washington.
Chip Somodevilla/Getty Images

Deeper social issues found in overdose epidemic study

PHOTO: A baby uses a walker in this stock photo.
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Infant walkers provide no benefit, cause much harm: Study

PHOTO: Aspirin is seen here in this undated file photo.
U. Baumgarten/Getty Images, FILE

Healthy, elderly adults should think twice before starting aspirin: Study

PHOTO: A young man waits in a hospital corridor in this undated stock photo.
STOCK IMAGE/Getty Images

Medicaid work requirements will cause 'more harm than good': Researchers

Florastor is used as a probiotic or friendly bacteria to maintain normal bowel function and promote intestinal health.
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Probiotics: What are they and how do they work?

Florastor is used as a probiotic or friendly bacteria to maintain normal bowel function and promote intestinal health.
Getty Images

There's really not much proof probiotics work: Study

PHOTO: A woman jogs in this undated stock photo.
STOCK PHOTO/Getty Images

5 big takeaways on why fewer people are physically active around the world: Study

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