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1932

Explained

Collage juxtaposes silhouettes of overweight people with unlabeled graphs, a BMI (height-weight ratio) chart, scale and measuring tape.
Society

She saw the obesity epidemic coming. Then an unexpected finding mired her in controversy.

Katherine Flegal was a scientist who found herself crunching numbers for the government, until one day her analyses set off a firestorm. What does she make of her decades as a woman in public health research?

Photograph of a young baby being fed from a bottle by a bearded father
Health & Disease

The quest for better baby formula

Replicating human milk is no easy feat — nor is separating the science from the hype

Photograph of lots of garishly colored Froot Loops cereal
Food & Environment

What can we do about ultraprocessed foods?

Researchers are figuring out the features of these foods that harm our health — and proposing ways ahead

Animated cartoon shows a variety of people coughing.
Health & Disease

New views of a cough: From TB and chronic cough to hope for Parkinson’s

Scientists are revealing new secrets of the reflex that protects our lungs, spreads disease and irritates us all

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