Study finds effect is similar to breathing second-hand tobacco smoke
Too much dozing is also bad for you
Lab-grown veins successful in animal testing
Simple measures such as hand washing and disinfecting skin make a difference
Studies find much lower infection rates compared with nets alone
Study finds specialty stroke centers save lives
Disease challenges drug developers
Can lead to poor health, money troubles and crime
New medicines may be to blame
Could predict risk years before symptoms appear
Animal study finds fetal brain damage
Those who spend four hours of leisure time a day sitting at a computer or watching TV are 50 percent more likely to die
People who recover from swine flu seem to have strengthened immunity against other flu strains
Scientists discover previously unknown part of parasite lifecycle
Genetic test could help better detect disease
Data from Mexico likely valid for other middle-income countries
Toddlers with infections are healthier during school years
Mentally eating chocolate might make you less interested in doing it for real
Study finds biggest benefit for women with no risk factors
Risk also rises for those who are considered to be underweight
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