Allison Aubrey

Each year, about 31,000 men and women in the U.S. are diagnosed with a cancer caused by an infection from the human papillomavirus, or HPV. It's the most common sexually transmitted virus and infection in the U.S.

In women, HPV infection can lead to cervical cancer, which leads to about 4,000 deaths per year. In men, it can cause penile cancer. HPV also causes some cases of oral cancer, cancer of the anus and genital warts.

Burgers and chicken nuggets are still the mainstay of the Happy Meal. But on Thursday McDonald's announced its goal to market more balanced kids meals around the globe.

The company says by the end of 2022, at least 50 percent or more of the kids meal options listed on menus will meet new global Happy Meal nutrition criteria: Meals will have 600 calories or less; no more than 10 percent of calories from saturated fat; no more than 650 mg sodium; and no more than 10 percent of calories from added sugar.

To age well, we must eat well. There has been a lot of evidence that heart-healthy diets help protect the brain.

The latest good news: A study recently published in Neurology finds that healthy seniors who had daily helpings of leafy green vegetables — such as spinach, kale and collard greens — had a slower rate of cognitive decline, compared to those who tended to eat little or no greens.

The flu doesn't just make you feel lousy. A study published Wednesday finds it can increase your risk of having a heart attack, too.

"We found that you're six times more likely to have a heart attack during the week after being diagnosed with influenza, compared to the year before or after the infection," says study author Dr. Jeff Kwong, an epidemiologist and family physician with the Institute for Clinical Evaluative Sciences and Public Health Ontario in Canada.

The idea that each of us has a unique nutrition blueprint within our genes is a delicious concept.

Perhaps, this helps explain the growth in personalized nutrition testing and services such as Habit, Profile Precise and Nutrigenomix.

So, what exactly can these tests tell you?

Listen up, night owls: If you're sleeping six or fewer hours per night, you're not doing your health any favors.

A new study finds that getting the recommended seven to nine hours of sleep per night may help you tame your sweet tooth.

The thinking about problem drinking and alcoholism has changed. It's no longer considered a black-and-white, you have it or you don't condition.

"We now know that there's a full spectrum in alcohol use disorder," says George Koob, the director of the National Institute on Alcohol Abuse and Alcohohlism, part of the National Institutes of Health. You can have a mild, moderate or severe problem.

Looking for a diet that is simple to follow? You might want to give the Mediterranean diet a try.

It's not so much a prescriptive meal plan as it is a well-balanced pattern of eating. Think lots of whole grains, vegetables, beans, nuts, olive oil, fish and smaller amounts of dairy, poultry and even a little red wine (if you like).

Say you're on a Tinder date and the situation turns weird.

"You're thinking, I need to get out, I no longer feel safe," says Celine Guedj, a senior at the University of New Hampshire in Durham. She's role-playing the use of a new app, uSafeUS.

"That's when you open the app," Guedj explains. One feature called Time to Leave is designed to give you a quick out. "You get a fake call" or text, Guedj says. It sounds like it's your mom or your roommate interrupting you with an urgent request.

Nobody likes the feeling of being left out, and when it happens, we tend to describe these experiences with the same words we use to talk about the physical pain of, say, a toothache.

"People say, 'Oh, that hurts,' " says Nathan DeWall, a professor of psychology at the University of Kentucky.

DeWall and his colleagues were curious about the crossover between physical pain and emotional pain, so they began a series of experiments several years back.

Back in the 1960s, the fact that our diets influence the risk of heart disease was still a new idea. And there was a debate about the role of fats and the role of sugar.

The sugar industry got involved in efforts to influence this debate. "What the sugar industry successively did," argues Stanton Glantz of the University of California, San Francisco, "is they shifted all of the blame onto fats."

If you're gluten-free, you may turn up your nose at Aunt Betsey's macaroni and cheese. And what if you've got a vegan teenager in the family who'd like the Thanksgiving feast to be turkey-free?

A poll from the University of Michigan finds that for families with a picky eater or someone on a special diet, holiday meals can be tricky.

Jon McHann, 56, got started on prescription opioids the way a lot of adults in the U.S. did: He was in pain following an accident. In his case, it was a fall.

"I hit my tailbone just right, and created a severe bulging disc" that required surgery, McHann says.

McHann, who lives in Smithville, Tenn., expected to make a full recovery and go back to work as a heavy haul truck driver. But 10 years after his accident, he's still at home.

Scott Gottlieb, the Food and Drug Administration commissioner appointed by the Trump administration, has this in common with Michelle Obama: He wants to know what's in the food he eats.

And this, it seems, includes calorie counts.

Now, the FDA has released its guidance on implementing an Obama-era rule that requires chain restaurants and other food establishments to post calories on menus or menu boards. The mandate was written into the Affordable Care Act back in 2010.

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