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In a finding likely to get cheese lovers talking, researchers in Nepal and Canada report that yak cheese contains higher levels of heart-healthy fats than cheese from dairy cattle, and may be healthier. Producers make the cheese from the milk of yaks. Those long-haired humped animals are fixtures in Tibet and throughout the Himalayan region of south central Asia, Mongolia, and a few other countries.

More than a third of people over age 70 have some form of memory loss according to a national study. While an estimated 3.4 million Americans have dementia, defined as a loss of the ability to function independently, the researchers estimate that another 5.4 million over age 70 have memory loss that disrupts their regular routine but is not severe enough to affect their ability to complete daily activities.

Body Mass Index, the measure of a person's fat based on their height and weight, may be an effective prognostic tool for specific types of breast cancer. Women with locally advanced breast cancer and inflammatory breast cancer with high BMIs had worse prognosis than women with the disease whose BMIs were in the healthy range.

A drug that blocks production of an enzyme that enables ovarian cancer to gain a foothold in a new site can slow the spread of the disease and prolong survival in mice, but only if the drug is given early in the disease process.

A novel aerosol version of the most common tuberculosis vaccine, administered directly to the lungs as an oral mist, offers significantly better protection against the disease in experimental animals than a comparable dose of the traditional injected vaccine, researchers report.

Many people equate lasers with a sci-fi battle in a galaxy far, far away or, closer to home, with grocery store scanners and compact disc players. However, an ultra-fast, ultra-intense laser, with laser pulse durations of one quadrillionth of a second, otherwise known as one femtosecond, could change cancer treatments, dentistry procedures, precision metal cutting, and joint implant surgeries.

Dopamine, a drug currently used to treat Parkinson's disease and other illnesses, also might work in cancer patients. The study, which was done in mouse and laboratory models, shows that dopamine could possibly prevent new blood vessels from growing and as a result, slow cancer progression.

You may want to buy healthy food for your family, but if the good grocery stores are far away and pricey and the fast-food outlets are cheap and plentiful, it may be harder to make the healthy choice. New research confirms there are links between our urban surroundings and how likely we are to struggle with obesity.

Scientists have uncovered a dramatic new twist in the battle against TB. They have identified how the killer bacterium makes itself immune to a key component of the only effective treatment against the disease.

Try solving a jigsaw puzzle without many of the pieces you need while also using some pieces that seem to fit but could be from a different game. That's one way to describe the challenge scientists face today in trying to sort out what it is in the environment that may increase some women's risk of breast cancer. Unfortunately, right now it appears that it could be a lot of things. "We know the environment must be involved in breast cancer," said Dr.