Health & Medicine
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Health & MedicineAlzheimer’s trade-off for mentally active seniors
Staying mentally active may delay the onset of Alzheimer’s disease but may also prompt rapid cognitive decline once symptoms appear.
By Bruce Bower -
Health & MedicineOvary removal proves beneficial for cancer-prone women
BRCA mutation carriers who opt for surgery survive longer than those who forgo the operation, a new study shows.
By Nathan Seppa -
LifeWhy starved flies need less sleep
Low lipid levels keep the insects buzzing past bedtime, a new study finds, suggesting a role for metabolism in regulating sleep.
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Health & MedicineWheat genome announcement turns out to be small beer
The DNA sequence released by U.K. team still requires assembly.
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Health & MedicineDairy foods may cut heart attack risk
The reputations of milk, cheese and many other dairy products have taken a bit of a hit in recent years for their constituting a major dietary source of saturated fats — a risk factor for cardiovascular disease. How ironic, then, that a Swedish study now correlates intake of dairy fats with a reduced risk of heart attacks.
By Janet Raloff -
Health & MedicineNew drug fights metastatic melanoma
A novel compound joins two other promising therapies to offer hope for patients with the advanced form of the skin cancer, who currently have poor treatment options.
By Nathan Seppa -
Health & MedicineNew gel seals wounds fast
A synthetic material revs up blood clotting at low cost.
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Health & MedicineAmphetamine abusers face blood vessel risk
The odds of sustaining aorta damage are more than tripled in people who abuse or are dependent on amphetamines, a review of hospital records finds.
By Nathan Seppa -
LifeGene profiles may predict TB prognosis
A molecular profile may help doctors predict who will get sick from TB infections.
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Health & MedicineTraffic may drive some people to diabetes
Urban air pollution — especially the particles and gases emitted by heavy traffic — can increase a senior citizen’s risk of developing type-2 diabetes, according to a new German study. If confirmed, its authors say, pollution would represent a “novel and potentially modifiable risk factor” for the metabolic disorder.
By Janet Raloff -
Health & MedicineTeen hearing loss rate worsens
The percentage of adolescents with some decline has increased since the 1990s, a study shows.
By Nathan Seppa -
Health & MedicineThe high cost of diabetes
Although an estimated 7.8 percent of Americans have been diagnosed with diabetes, patients with this metabolic disease rack up 23 percent of hospital costs nationwide, a new federal analysis finds. Their collective hospital bill in 2008, the most recent year for which data were available: almost $83 billion.
By Janet Raloff