Eating more blueberries, apples and pears may be linked to lower risk of diabetes, according to a new U.S. study. These fruits are loaded with flavonoids, a natural compound present in certain fruits, vegetables and grains, which some research has tentatively tied to heath benefits such as a lower risk of heart disease or cancer. "People who ate a higher amount of blueberries or apples, they tended to have a low risk of type 2 diabetes," … full story

Despite suffering severe pain, about one in three older cancer patients do not end up taking opioids, the most potent of analgesics, according to a new study from Canada. It's not clear why these patients are not getting their pain treated with opioids, which include morphine, oxycodone and fentanyl. It could be that physicians are not prescribing the medications or that patients are getting prescriptions, but not filling them. They don't have … full story

U.S. researchers who followed healthy male veterans for up to 24 years found that older men who ate more high-fiber fruits were less likely to show signs of gum disease. For more than 600 men participating in a long-running Veterans Affairs dental study, each serving of high-fiber food was linked to an almost 30 percent lower likelihood of lost teeth and a 24 percent lower risk of bone loss associated with receding gums. The apparent benefit wasn't … full story

Women, especially younger women, are more likely than men to show up at the hospital with no chest pain or discomfort after having a heart attack, a new study suggests. Those symptoms, or lack of symptoms, can result in delayed medical care and differences in treatment that might in turn help explain why women in the study were also more likely to die of their heart attacks, according to researchers. "They might not even know they're having a heart … full story

Taking a dip in a tub of cold water after exercising may prevent muscle soreness, but a new look at past research says little is known about its side effects or even how long to stay in the water. In general, the researchers said there is very little quality research on the topic of so-called cryotherapy, despite the treatment's popularity to prevent or reduce muscle soreness days after exercising. "It's a typical intervention in sports medicine … full story

Extra vitamin D and calcium may offer some protection against fractures in elderly people, but have little or no impact on cancer risk, according to a fresh look at the medical evidence. Some research has suggested that vitamin D, with or without calcium, might help stave off cancer, but recent trials have slashed those hopes. "It turns out that as a group, all of the micronutrient supplements have been disappointing," said Dr. Michael Pollak, … full story

The case of a 219-pound 8-year-old boy taken from his mother for health reasons spotlights a problem that has almost tripled in the U.S. in the last 30 years -- cases of extreme child obesity. "Not only do we have a higher percentage of kids who are obese but a higher percentage of children who are severely obese," said Dr. Garry Sigman, director of adolescent medicine and associate professor of pediatrics at Loyola University Medical Center near … full story

If you have chronic heart failure, being around a smoker may be bad for your physical and mental well-being, a new study suggests. Researchers found that of 205 non-smokers with heart failure, those who regularly breathed in secondhand smoke reported more problems in their day-to-day functioning -- physical and emotional. The findings, reported in the Archives of Internal Medicine, do not prove that other people's smoke was to blame. But they … full story

In people with low blood levels of vitamin D, boosting them with supplements more than halved a person's risk of dying from any cause compared to someone who remained deficient, in a large new study. Analyzing data on more than 10,000 patients, University of Kansasresearchers found that 70 percent were deficient in vitamin D and they were at significantly higher risk for a variety of heart diseases. D-deficiency also nearly doubled a person's likelihood … full story

People who have never smoked, but who live in areas with higher air pollution levels, are roughly 20 percent more likely to die from lung cancer than people who live with cleaner air, researchers conclude in a new study. "It's another argument for why the regulatory levels (for air pollutants) be as low as possible," said Francine Laden, a professor at the Harvard School of Public Health, who was not involved in the research. Though smoking is … full story