Allison Aubrey

Will people drink less sugary soda if the price goes up? A new study suggests the answer is ... yes.

Researchers at Drexel University surveyed residents of Philadelphia both before and after a 1.5-cent-per-ounce tax on sweetened drinks took effect. They also surveyed people in three other cities that don't have a beverage tax. The researchers found Philadelphians were about 40 percent less likely to drink sweetened beverages daily after the tax went into effect, compared with people in the other cities.

People who are diagnosed with prediabetes can delay or prevent the disease if they change their lifestyle and lose a significant amount of weight. But here's the challenge: How can people be motivated to eat healthier and move more? Increasingly, the answer might include digital medicine.

"Just telling people to do things doesn't work," says Sean Duffy, CEO of Omada Health. If it were easy, there wouldn't be more than 80 million adults in the U.S. with prediabetes.

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.

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