How toxic fumes seep into the air you breathe on planes.

A husband’s stroke, the Australian bushfires, and a trip to the Great Barrier Reef.

For years, JaMarcus Crews tried to get a new kidney, but corporate healthcare stood in the way. He needed dialysis to stay alive. He couldn’t miss a session, not even during a pandemic.

And what it lost in the process.

Over three weeks, COVID-19 delivered “cheap shots.” It took hostages. And it left the Malinowski family with with pain, loss and grief.

The ethical burdens of the ICU during Covid.

When the business icon died in a fire last week, questions abounded. The answers seem rooted in a Covid-period spiral, where he turned to drugs and shunned old friends.

How could the coronavirus overwhelm a Florida nursing home so quickly?

Years from now, we will look back in horror at the counterproductive ways we addressed the obesity epidemic and the barbaric ways we treated fat people—long after we knew there was a better path.

Welcome to Toke-la-homa.

A profile of YouTube yogi Adriene Mishler

He’s an expert on Twitter virality, but not on infectious disease. Does he do more help or harm?

In Alabama, entrenched poverty and unusual geology have created a public-health disaster.

A couple, a caregiver, and a promise.

Prenatal testing is changing who gets born and who doesn’t. This is just the beginning.

A device connected to my heart could save my life. It could also be hacked.

As the country heads into a dangerous new phase of the pandemic, the government’s management of the P.P.E. crisis has left the private sector still straining to meet anticipated demand.

At a laboratory in Manhattan, researchers have discovered how SARS-CoV-2 uses our defenses against us.

A mother’s fight to save a Black, mentally ill 11-year-old boy in a time of a pandemic and rising racial unrest.

Data is the lifeblood of a functioning government. Over the past four years, the Trump administration has destroyed, disappeared, or distorted vast swaths of the information the state needs to protect the vulnerable, safeguard our health, and alert us to emerging crises.

“I watched my friend dying on Facebook. But it was all a GoFundMe scam.”

The rare Chilean soapbark tree produces compounds that can boost the body’s reaction to vaccines.

Teens are dying by suicide at an alarming rate. Public health officials call it a crisis. Researchers have identified several clusters nationwide. The survivors in this Arizona community are fighting back.

How the world’s greatest public health organization was brought to its knees by a virus, the president and the capitulation of its own leaders, causing damage that could last much longer than the coronavirus.

Partying in Kavos during the pandemic.