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Postpartum psychosis is at the center of the Lindsay Clancy trial. What is it?

A high-profile court case is calling attention to this rare and understudied condition

Eating less protein could help you live longer

While "protein maxxing" is all the rage, reducing your protein intake could add years to your life

AI helped produce two proofs for the same cryptography problem

An M.I.T. Ph.D. student and two University of California system cryptographers used GPT-5.6 Sol Ultra in different ways, raising new questions about independent discovery and scientific credit

Gunther von Hagens, Creator of Polarizing ‘Body Worlds’ Exhibits, Dies at 81

CLAY RISEN

A German scientist, he developed a process for turning corpses into posable figures. His shows drew millions of visitors, and many detractors.

Trump Administration Is Undoing Plans to Boost Workplace Heat Protections

SCOTT DANCE

The Biden administration took steps to shield workers from extreme temperatures. The Trump administration is taking a gentler approach with employers.

Military Testosterone Policy Raises Questions About Its Links to Aggression

AZEEN GHORAYSHI

A new policy raises questions about testosterone’s effect on aggression in some men.

‘This Is Very Strange’: Ancient Smallpox May Have Been Less Deadly

CARL ZIMMER

Scientists have found smallpox viruses in the remains of people in Chile from around 500 years ago, revealing how the virus may have evolved into a global killer.

Olga Soffer, Fashion Maven Who Studied Caveman Couture, Dies at 83

MICHAEL S. ROSENWALD

After working for a department store, she switched to archaeology and made important discoveries about prehistoric clothes and gender roles.