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1 in 3 seniors dies with dementia and when parents ignore doctors: In health news today

A new study has found that one in three U.S. seniors dies with Alzheimer's or another form of dementia, prompting one expert to dub the condition's prevalence a
A new study has found that one in three U.S. seniors dies with Alzheimer's or another form of dementia, prompting one expert to dub the condition's prevalence a "public health crisis."

In today's health news:

One in three U.S. seniors dies with Alzheimer's disease or another form of dementia, says a sobering new study, which also found that in many cases, the dementia causes or contributes to death. HealthDay says between 2000 and 2010, the rate of Alzheimer's-related deaths rose 68 percent, prompting one expert to call it a "public health crisis."

A shortage of nurses in neonatal intensive care units doesn't appear to be good for the infants in those ICUs, says new research. U.S. News & World Report says the authors of a new study have linked nurse understaffing to higher rates of infection, although they didn't prove a causal relationship.

Women who receive false positive readings on mammograms are at risk for prolonged anxiety, says a new study, which looked at more than 1,300 women and found that those who received false positives reported symptoms of anxiety and depression up to three years later – long after they knew that they didn't, in fact, have cancer. ABCNews.com says their well-being was more similar to that of women with breast cancer than cancer-free women.

The American Academy of Neurology has changed its guidelines for how to handle concussions among athletes, reports the New York Times. The group is now putting more emphasis on handling concussions on a case-by-case basis, rather than according to a static, predetermined grading system.

Among folks with a genetic risk of Alzheimer's disease, high blood pressure may trigger the development of brain plaque, which is associated with Alzheimer's. According to HealthDay, researchers called it "yet another reason for keeping blood pressure, also known as hypertension, under control."

And here's yet another reason for keeping your heart healthy: New research appearing in the journal Circulation found that adhering to the American Heart Association's "Life's Simple 7" steps to reduce heart disease risk also appears to play a role in helping to prevent cancer. The Simple 7 include being physically active and maintaining healthy cholesterol levels.

There's a good chance that a diabetes prevention program led by community health workers would be successful, says a new study in the American Journal of Preventive Medicine. Researchers found that the programs led by such workers were more successful at helping people lose weight – and keep it off.

Black children are less likely than other children to receive antibiotics from their doctor, said researchers – not because of bias, but because other children who aren't black are receiving more antibiotics than they should be. HealthDay noted that 29 percent of visits from children who weren't black ended in a prescription, compared to about 24 percent for black children.

Parents aren't very good at listening – to doctors, that is. The most recent University of Michigan Mott Children's Hospital National Poll found that only about one in three U.S. parents say they listen to their children's doctors all the time; more than one in 10 say they do so "only occasionally."

And finally: The Los Angeles Times reports on findings that an increase in the prevalence of the sexually-transmitted virus known as molluscum cantagiosum may be linked to the rise in popularity of shaving or waxing of pubic hair.