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Science

Cancer-detecting blood tests are on the rise. Do they work?

In the spring of 2021, the cancer field was abuzz over research that suggested a simple early-detection blood test could find dozens of different cancers, including many for which there is no routine screening.Four and a...

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Is red meat bad for your heart?

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How healthy are mangoes?

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A new study raises alarms about plastics and heart disease

Beef packaged in plastic is displayed for sale at a supermarket

This kind of sleep is essential for a healthy brain

Two particular phases in your nightly routine seem to play outsized roles in cognitive health. (Georgette Smith/The New York Times)

Can Metformin slow the aging process?

The research on metformin and human longevity is scant, but that hasnt stopped some people from experimenting with it. (Tyler Comrie/The New York Times)

China's Shenzhou-19 astronauts return to Earth

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Is it bad to chew gum all day?

A piece of green chewed gum in New York, April 16, 2025. (Eric Helgas/The New York Times)

Earth Day 2025 seeks clean electricity 

Volunteers clean a beach to mark Earth Day

Study links diabetes in pregnancy to developmental risks

A patient who is pregnant with her first child at the CenterPlace Health medical clinic in Sarasota, Fla., Feb. 14, 2022. (Octavio Jones/The New York Times)

What are microplastics doing to our bodies?

A researcher studies microplastics content in samples at a lab at the University of New Mexico in Albuquerque, March 4, 2025. (Gabriela Campos/The New York Times)

Knees hurt? This exercise can help

Strength training can be one of the best treatments for chronic knee pain. (Elliott Jerome Brown Jr./The New York Times)

Abel Prize awarded to Japanese mathematician who abstracted abstractions

An undated image by Peter Bagde/Typos1/The Abel Prize of Masaki Kashiwara, a Japanese mathematician who received this years Abel Prize, which aspires to be the equivalent of the Nobel Prize in math. (Peter Bagde/Typos1/The Abel Prize via The New York Times)

Record 2024 temperatures accelerate rise in sea levels

Ice floats in front of houses in Nuuk, Greenland, February 11, 2025.

Saturn gains 128 new moons, bringing its total to 274

Titan, Saturns largest moon, measures 3,200 miles, or 5,150 kilometers, across and is larger than the planet Mercury. (NASA/JPL-Caltech, via Space Science Institute via The New York Times)

Do we age steadily, or in bursts?

For many people, aging feels like it happens in stops and starts. It turns out there may be a scientific basis for this experience. (Alberto Miranda/The New York Times)
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