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A Common Virus May Play Role in Alzheimer’s Disease, Study Finds

A Common Virus May Play Role in Alzheimer’s Disease, Study Finds

New research suggests that certain viral infections could accelerate an immune response increasing the accumulation of amyloid, the protein in human brains which forms the plaques of Alzheimer’s.

Seeking Clues to Obesity in Rare Hunger Disorder

Seeking Clues to Obesity in Rare Hunger Disorder

Kristin Tremblay helps make dinner at home in Gainesville, Fla. She has a disorder that makes her uncontrollably hungry.

Readers Respond: ‘The Biggest Loser’

Readers Respond: ‘The Biggest Loser’

Sean Algaier, a pastor from Charlotte, N.C., was a contestant on “The Biggest Loser.” He went from 444 pounds to 289 but now his weight is up to 450 again, and he is burning 458 fewer calories a day than would be expected for a man his size.

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.

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.

Trump’s New Plan to Dismantle Obamacare Comes With Political Risks

Trump’s New Plan to Dismantle Obamacare Comes With Political Risks

The Justice Department has asked a court to throw out major elements of the Affordable Care Act, including the individual mandate and the popular provision that protects those with pre-existing medical conditions.

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.

For Scientists Racing to Cure Alzheimer’s, the Math Is Getting Ugly

For Scientists Racing to Cure Alzheimer’s, the Math Is Getting Ugly

Vicki Staehr, who lives in Orlando, Fla., has enrolled in a clinical trial for an experimental Alzheimer’s treatment intended to slow memory loss.

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.

Psychology Itself Is Under Scrutiny

Psychology Itself Is Under Scrutiny

An image taken from the Stanford Prison Experiment in 1971, which was conducted by the psychologist Philip Zimbardo.

When an Iowa Family Doctor Takes On the Opioid Epidemic

When an Iowa Family Doctor Takes On the Opioid Epidemic

Dr. Nicole Gastala, with a young patient in Marshalltown, Iowa, regularly prescribes Suboxone, a medication that suppresses cravings and withdrawal symptoms in people with opioid addiction.

Many People Taking Antidepressants Discover They Cannot Quit

Many People Taking Antidepressants Discover They Cannot Quit

Victoria Toline needed nine months to taper off Zoloft. “I had to drop out of school,” she said. “My life’s been on hold.”

This E.R. Treats Opioid Addiction on Demand. That’s Very Rare.

This E.R. Treats Opioid Addiction on Demand. That’s Very Rare.

Dr. Andrew Herring of Highland Hospital in Oakland, Calif., left, gave a dose of buprenorphine, a drug that eases the symptoms of opioid withdrawal, to a homeless man who collected cans to pay for bus fare to get to the hospital.

Romaine Riddle: Why the E. Coli Outbreak Eludes Food Investigators

Romaine Riddle: Why the E. Coli Outbreak Eludes Food Investigators

The source of an E. coli outbreak in romaine is eluding investigators, who are examining fields, water, harvesting equipment and processing sites.

What to Do When a Loved One Is Severely Depressed

What to Do When a Loved One Is Severely Depressed

At a suicide prevention event at Walla Walla High School in Walla Walla, Wash., last month, participants choose necklaces of different colors representing how suicide had affected their lives.


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