Rates of food sensitivity vary by country: study
People in Portland are more likely than those in Iceland to be sensitive to certain foods, but reactions to fish, eggs and cow's milk appear rare in both places.
Birth control pill poses no added health risk
One of the world's largest studies of the contraceptive pill has found that women who have taken it can expect longer lives and are less likely to die from any cause, including cancer and heart disease.
Calcium may help you live longer: study
Getting a bit more calcium in your diet could help you live longer, new research suggests.
Scientists find "mother" of all skin cells
Scientists have found the "mother," or origin, of all skin cells and say their discovery could dramatically improve skin treatments for victims of serious wounds and burns.
"Personal" study shows gene maps can spot disease
Two studies published on Wednesday show it is possible to sequence the entire gene maps of families with inherited diseases and pinpoint the offending bit of DNA.
More cocaine-overdose deaths seen on hotter days
The number of New Yorkers who die of cocaine overdose appears to go up when the temperature surpasses 75 degrees, a new study suggests.
Smoking years key factor in lower Parkinson's risk
Several studies have shown that smokers have a lower risk of developing Parkinson's disease.
Being in the sun can keep infections at bay
Vitamin D is vital in activating human defenses and low levels suffered by around half the world's population may mean their immune systems' killer T cells are poor at fighting infection, scientists say.
Babies learn best through real, not video, world
Putting children in front of educational DVDs does not help boost their language skills.
Shutting down
Today's wired teens are less close to parents and peers, raising concern over the state of their psychological health.
Circumcision may not cut HIV spread among gay men
Although studies in Africa have shown that circumcision can lower the spread of HIV among heterosexuals, it may not do much to prevent infections among gay and bisexual men in Western countries.
Medication fears lead to worse side effects
It may not be surprising, but a new study offers some proof that patients who are worried about their medications are more likely to have side effects from them.
Live kidney donors do not die sooner: study
Healthy Americans who donated a kidney were not at higher risk of dying afterward, which may reassure potential donors and help shorten the long waiting list for an organ.
Modern Etiquette: Do the obese really deserve contempt?
Obesity is everywhere in our society today -- and this is how it is met by a remarkable number of people.
Over exercising: Too much of a good thing
Breaking up your fitness routine is hard to do. But it's crucial for avoiding the bigger heartache of overuse injury.
