September 23, 2011
CDC Considers Vaccinating Boys, Not Just Girls, for
U.S. health authorities now
recommend that girls and young women be vaccinated against human
papillomavirus, a sexually transmitted disease that is a known
cause of cervical cancer, but that recommendation does not extend
to boys and young men.
People Tend to Choose Friends Just Like
In large and diverse
groups, people with similar beliefs, values and interests tend to
stick together, establishing both friendships and romantic
relationships with like-minded people, a new study suggests.
Scientists ID More Genes Linked to Heart
Researchers have identified
five new genes that play a role in people's risk for heart attack
and coronary artery disease -- the most common cause of premature
death and disability in the world, according to a new study.
Many Black Men in Cold Climates Lack Vitamin D
People's bodies build up
vitamin D through exposure to sunlight, But a new study suggests
black men who live in areas of the United States with low sunlight
are more likely to have vitamin D deficiency than whites who live
in the same places.