Last year's flu vaccine didn't work very well. This year's version should do a much better job protecting people against the flu, federal health officials said Thursday.

An analysis of the most common strains of flu virus that are circulating in the United States and elsewhere found they match the strains included in this year's vaccine, the federal Centers for Disease Control and Prevention said.

Sugar can promote tooth decay. Duh.

So if you want good oral health, it makes sense to brush and floss regularly and perhaps limit the amount of sugar you consume. Right?

In 2015, this may seem fairly obvious.

We all could probably eat more fruits and vegetables. But if forced to choose between whole fruit or a glass of juice, which one seems more healthful?

Parents do a lot more than make sure a child has food and shelter, researchers say. They play a critical role in brain development.

While the brain sleeps, it clears out harmful toxins, a process that may reduce the risk of Alzheimer's, researchers say.

During sleep, the flow of cerebrospinal fluid in the brain increases dramatically, washing away harmful waste proteins that build up between brain cells during waking hours, a study of mice found.

On Tuesday, if all goes according to plan, the federal health law's marketplaces for individual health insurance are scheduled to open for business.

Nearly all Americans will be required to have health insurance starting Jan. 1, 2014, or else they'll be liable for a tax penalty.

I'll never forget the time my big brother sank his fork in the back of my hand after I snitched food off his plate.

But all siblings fight, right? So I was more than a little skeptical of a study saying that sibling aggression can cause serious mental health problems like depression and anxiety.

Finding the right treatment for depression can be a struggle. People find relief with the first treatment only 40 percent of the time. Trying different antidepressants or therapies can take months, which means months of suffering.

Scientists are trying to better the odds by searching for signals in the body or in behavior that could be signposts to the right treatment. Researchers at Emory University say that PET scans of the brain may help predict which people do better on SSRI antidepressants, and which would benefit most from cognitive behavioral therapy instead.

In a decision that could have broad-reaching effects on the future of science and medicine, the Supreme Court ruled Thursday that:

-- "A naturally occurring DNA segment is a product of nature and not patent eligible merely because it has been isolated."

-- But, synthetically created "strands of nucleotides known as composite DNA (cDNA)" are "patent eligible" because they do not occur naturally.

First, let's spoil this tale right away by telling you the 19-year-old man in Virginia who downed a quart of soy sauce on a dare survived.

It's a happy ending of sorts. But the guy had a close call. And you definitely don't want to try it.

While there's been quite a debate lately about whether the salt in the modern American diet is risky, there's no question that a massive amount of salt ingested quickly can lead to death.

It's not the first study that finds the lowly aspirin may protect against the deadliest kind of skin cancer, but it is one of the largest.

And it adds to a mounting pile of studies suggesting that cheap, common aspirin lowers the risk of many cancers — of the colon, breast, esophagus, stomach, prostate, bladder and ovary.

The Obama administration on Wednesday released its final rule on essential health benefits, which sets out the coverage insurers must offer starting in 2014.

Insurers must cover 10 broad categories of care, including emergency services, maternity care, hospital and doctors' services, mental health and substance abuse care and prescription drugs.

Looking to cut back on the calories in your cocktail by mixing, say, diet soda and rum? Well, get ready for the buzz.

According to the results of a new study, this combination will leave you drunker than if you'd mixed the liquor with a sugary, caloric mixer.

It's here. A variant of norovirus first spotted in Australia is now sweeping the U.S.

The wily virus causes stomach upset, vomiting and diarrhea. The sickness is sometimes referred to as the stomach flu, though influenza has nothing to do with it.

In shorthand often used to describe the brain, fear is controlled by a small, almond-shaped structure called the amygdala.

But it's not quite that simple, as a study published Sunday in Nature Neuroscience demonstrates.

Technology has made us healthier in a lot of ways. It’s beaten back old threats from smallpox to stillbirth to scarlet fever. But many think the march of progress has gone too far, and we need to get back to nature. 

Author Nathanael Johnson says most of us are in the middle – suspicious of technology run amok, but unwilling to trade the condo for a mud hut. He investigates whether the natural approach is really better for us in his book, “All Natural.” 

Nathanael also laid out five common myths about nature versus technology. Get the gist below, or click below and listen to the full conversation:

In 2007, Christoph Bartneck, a robotics professor at the University of Canterbury in New Zealand, decided to stage an experiment loosely based on the famous (and infamous) Milgram obedience study.

If you’ve been to an emergency room in Washington in recent months, you're probably in a new database.

The goal is to treat more injuries and illnesses outside the emergency department, in a simpler setting, which should save money, curb drug abuse and also benefit patients.

Washington's hospitals and doctors have agreed to enter some basic information about their emergency patients into a computer system. Once you hit your fifth emergency visit per year, the hospital will assign a case manager to look at your records.

When presented with a tempting buffet of French food, not overeating can be a challenge. But a new study by researchers in Lyon suggests there are strategies that will help people resist temptation.

People trying to keep off excess weight are frequently told that it's better to eat small amounts of food frequently during the day, rather than the typical breakfast, lunch and dinner. The idea is that more frequent eating will stave off hunger pangs that may lead to overeating.

The tantalizing aroma of freshly baked brioche is hard to resist, while a virtuous loaf of whole wheat often lacks that same allure. Blame it on the ferulic acid.

See, whole-wheat bread contains all parts of the wheat, including the bran, but white bread does not. That bran in the wheat bread contains the aforementioned ferulic acid, which overrides the compounds that give white bread its mouthwatering smell, according to new research.

This year's flu season started about a month early, prompting federal health officials to warn it could be one of the worst in years. They're urging everyone to get their flu shots.

But like every flu season, there are lots of reports of people complaining that they got their shot but still got the flu. What's up with that?

Well, as Michael Jhung of the Centers for Disease Control and Prevention explains, there are lots of possible reasons.

Our perceptions about dieting and our attitudes about overweight people are shifting, according to a new survey by the NPD Group.

The lab robot affectionately called "Vomiting Larry" has gone viral. His image and videoed vomiting for science are all over the Web.

Being a little overweight may tip the odds in favor of living a long life, according to a new analysis. Researchers say there may be some benefit to having a little extra body fat.

This isn't the first time researchers have raised questions about the link between body weight and how long someone will live. While there's no debate that being severely obese will raise the risk of all kinds of illnesses and even cut some lives short, it's less clear what happens to people who are less overweight.

It's well-known that chemotherapy often comes with side effects like fatigue, hair loss and extreme nausea. What's less well-known is how the cancer treatment affects crucial brain functions, like speech and cognition.

For Yolanda Hunter, a 41-year-old hospice nurse, mother of three and breast cancer patient, these cognitive side effects of chemotherapy were hard to miss.

"I could think of words I wanted to say," Hunter says. "I knew what I wanted to say. ... There was a disconnect from my brain to my mouth."


The whooping cough epidemic in Washington is nearly over – but not soon enough for a baby in King County. The newborn was Washington’s first fatality this year, despite a near-record number of infections.

"The baby had gone home, and we believe it was exposed to someone with unrecognized pertussis, got infected, and then developed complications and died," says Jeff Duchin, chief of epidemiology for Public Health Seattle & King County.

Lately, we've been learning more and more about the teeming masses of bacteria inside our bodies - essentially trillions of tiny organisms that make us sick and keep us healthy.

Now two scientists at the University of Colorado have dared to ask what kinds of bacteria lives inside our mouths. And they're finding some pretty surprising things in there.

Program aims to make kids more critical of junk food ads

Oct 9, 2012

Researchers in Washington are trying a new approach to the growing problem of childhood obesity. They plan to teach kids to be more media savvy -- and less susceptible to all those junk food ads.

Researchers say kids who spend more time in front of the screen are at higher risk of becoming overweight. And it’s not just because they’re sitting on the couch.

“One of the problems is that there’s so much food advertising,” says Erica Austin. She heads Washington State University's Center for Media and Health Promotion Research.

KevinElliottChi / Flickr

The Food and Drug Administration says it has found salmonella in a New Mexico plant that produces nut butters for national retailer Trader Joe's and several other grocery chains. The Trader Joe's peanut butter is now linked to 35 salmonella illnesses in 19 states.

The FDA said Friday that Washington state health officials have also confirmed the presence of salmonella in a jar of the Trader Joe's peanut butter found in a victim's home.

Miranda Kelly, a 14-year-old from Sykesville, Md., says she's been sleepwalking since she was 6 or 7. The first time, she says, "I woke up on the couch on a school day. And I'd gone to bed in my bed."

Since that first episode, Kelly now sleepwalks every couple of months. "I wake up in weird places, randomly. I have once woken up in the kitchen, and on the floor of the bathroom wrapped in my sheet," she says.