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Is This Tissue a New Organ? Maybe. A Conduit for Cancer? It Seems Likely.

Is This Tissue a New Organ? Maybe. A Conduit for Cancer? It Seems Likely.

Does interstitial tissue deserve to be classified as a new organ? Researchers disagree.

Trump Passed a Cognitive Exam. What Does That Really Mean?

Trump Passed a Cognitive Exam. What Does That Really Mean?

President Trump with Dr. Ronny Jackson after Mr. Trump’s physical exam at Walter Reed National Military Medical Center in Bethesda, Md.

As an H.I.V. Prevention Drug Surged in Australia, Condom Use Fell

As an H.I.V. Prevention Drug Surged in Australia, Condom Use Fell

Increasing use of Truvada was linked to declining rates of H.I.V. infection, researchers found, but also to decreased use of condoms.

A Kennedy Baby’s Life and Death

A Kennedy Baby’s Life and Death

President John F. Kennedy at Boston Children’s Hospital where his son Patrick died on Aug. 9, 1963, just 39 hours after being born 5 1/2 weeks premature. At the time, medicine had little to offer premature babies with respiratory distress.

She Went to Jail for a Drug Relapse. Tough Love or Too Harsh?

She Went to Jail for a Drug Relapse. Tough Love or Too Harsh?

Julie Eldred relapsed while on probation, and was sent to jail. Justices are weighing whether the probation requirement to stay clean constitutes cruel and unusual punishment.

After ‘The Biggest Loser,’ Their Bodies Fought to Regain Weight

After ‘The Biggest Loser,’ Their Bodies Fought to Regain Weight

Danny Cahill, playing the bass during a church service near Tulsa, Okla., won Season 8 of the NBC show “The Biggest Loser” by dropping 239 pounds. He has regained more than 100.

How Suicide Quietly Morphed Into a Public Health Crisis

How Suicide Quietly Morphed Into a Public Health Crisis

A candlelight vigil by family members of a young man who killed himself in Salem, Ore. Medications and psychiatric treatment are more widely available than ever, yet suicides in the United States are on the rise.

Hospital Giants Vie for Patients in Effort to Fend Off New Rivals

Hospital Giants Vie for Patients in Effort to Fend Off New Rivals

The headquarters in Englewood, Colo., of Catholic Health Initiatives, a nonprofit hospital system that plans to merge with Dignity Health in San Francisco.

Doctor, Your Patient Is Waiting. It’s a Red Panda.

Doctor, Your Patient Is Waiting. It’s a Red Panda.

A red panda named Hoppy examined during a routine check-up conducted by veterinarians and veterinary technicians and, second left, Harvard medical school student Wataru Ebina, at the Franklin Park Zoo in Boston.

Sex and Drugs Decline Among Teens, but Depression and Suicidal Thoughts Grow

Sex and Drugs Decline Among Teens, but Depression and Suicidal Thoughts Grow

Condom use is declining among sexually active teens, a federal survey found.

F.D.A. Chief Goes Against the Administration Stereotype

F.D.A. Chief Goes Against the Administration Stereotype

Scott Gottlieb, the Food and Drug Administration commissioner, has tried to win over critics while also paying attention to the concerns of the drug and health industries.

An Invasive New Tick Is Spreading in the U.S.

An Invasive New Tick Is Spreading in the U.S.

The Asian long-horned tick was first identified in New Jersey last November. The species now has been reported in the suburbs of New York City and as far west as Arkansas.

Dying Organs Restored to Life in Novel Experiments

Dying Organs Restored to Life in Novel Experiments

Kate Bowen with her infant, Georgia, in the intensive care unit at Boston Children's Hospital. Doctors tried to revive the baby's heart with an infusion of one billion mitochondria.

3-D Color X-Rays Could Help Spot Deadly Disease Without Surgery

3-D Color X-Rays Could Help Spot Deadly Disease Without Surgery

A three-dimensional scan of physicist Phil Butler's wrist, including watch, made using a new scanner developed by Dr. Butler and his son, Anthony Butler, a radiologist.

You’re Getting Very Sleepy. (So Is Everyone Else.)

You’re Getting Very Sleepy. (So Is Everyone Else.)

A sleep deficit can affect the safety and productivity of individuals in a workplace. Events such as the Challenger space shuttle disaster have been tied to a lack of sleep.

Ebola Erupts Again in Africa, Only Now There’s a Vaccine

Ebola Erupts Again in Africa, Only Now There’s a Vaccine

An Ebola quarantine unit in Muma, Democratic Republic of Congo, last year. The country’s ninth outbreak is believed to have begun in early April but was confirmed as Ebola only on Tuesday.


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