How Many People Die in India From Hot Weather? Nobody Really Knows.

Officials have yet to grasp the magnitude of heat-related deaths, let alone effectively deal with the problem, public health experts and scientists say.

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Scientists Grow More Hopeful About Ending a Global Organ Shortage

At an international conference, researchers at the forefront of animal-human transplantation compared notes and allowed themselves the first real optimism in decades.

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Canada Loses Its Status as Having Eliminated Measles

The disease was once considered eliminated in Canada, but not any more — there have been more than 5,000 cases in the last 12 months as vaccination rates have fallen.

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Which Senators Broke Ranks With Democrats to Advance the GOP Plan to End the Government Shutdown?

Two of them are retiring, and none of the others face re-election in 2026.

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Inside China’s Quest to Defy Aging with Longevity Labs and ‘Immortality Islands’

Longevity labs, “immortality islands” and grapeseed pills are part of China’s national project to conquer aging, despite sometimes shaky science and extravagant claims.

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The ‘Worst Test in Medicine’ Is Driving America’s High C-Section Rate

Round-the-clock fetal monitoring leads to unnecessary C-sections. But it’s used in nearly every birth because of business and legal concerns, The Times found.

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Canada Is About to Lose Its Status as Having Eliminated Measles

One province with an outsized number of cases has seen a collision of politics and public health policy.

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The Editor Got a Letter From ‘Dr. B.S.’ So Did a Lot of Other Editors.

The rise of artificial intelligence has produced serial writers to science and medical journals, most likely using chatbots to boost the number of citations they’ve published.

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Trump Says a Recent M.R.I. Scan Was ‘Perfect,’ and He’d ‘Love’ a Third Term

President Trump made the comments on the second day of his trip to Asia. The Constitution limits presidents to two terms, but Mr. Trump has suggested he might try to circumvent it.

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Inside Calgary’s Fight Over Fluoride in the Water

A contentious vote over the return of fluoride to Calgary’s water was supposed to settle a decades-long debate. But the battle on both sides remains as polarized as ever.

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