In 1943, a young research scientist found a cure for TB. It should have been the proudest moment of Albert Schatz’s life, but ever since he has watched, helpless, as his mentor got all the credit.

How a woman who couldn’t stop sleeping woke up.

On an affliction for the digital age, “Munchausen by internet.”

Ashlyn Blocker, 13, has a “congenital insensitivity to pain.”

A profile of Reinhold Messner, the greatest mountain climber of all time.

Animal nature, human racism, and the future of zoos.

The future of homo sapiens.

On the moral behavior of animals.

“From all appearances, this place is still an earthly paradise. There is just one problem, though you could stare at this palm grove for a lifetime and never see it. The soil under our feet, whitish gray in color with flecks of coral, contains a radioactive isotope called cesium 137.”

We know we need it, but we don’t know why.

On hypochondria.

Trying to fix the Atlantic Ocean’s food chain.

On being diagnosed with bipolar disorder.

A family’s struggle with mental illness and the criminal justice system.

The rise of drug-resistant gonorrhea.

Debates surrounding physician-assisted dying in the U.S.

A medical device company experiments on humans.

Diagnosed with a rare blood disease, the author reflects on illness and addiction.

How meteorologists are improving their predictive powers.

Sex and status disclosure in the age of Grindr and undetectable HIV-levels.

The day Hurricane Irene nearly drowned Prattsville, New York.

An essay on Alcor – “the Arizona cryonics company that has put the body of Boston Red Sox Hall of Famer Ted Williams in cryogenic suspension, in the hope he may one day rise again” – and the desire to live forever.

On getting a brain implant to slow the progress of Parkinson’s disease.

How memories go wrong.

On the economics, impact, and communities of the international pipeline.