Group items tagged

Aneuploidy-the incorrect number of chromosomes in a cell-is extremely common in early embryos and is the primary reason for pregnancy loss. A report published today (April 9) in Science reveals that one cause of this aneuploidy-aberrant cell divisions in the embryo-is linked to a genetic mutation carried by the mother. Astonishingly, this mutation turns out to be very common and appears to have been under positive selection during human evolution.

4:00 video 93% of Americans agree that sex education should be taught in schools, but what's the best approach to get teens to practice safe sex? Read More: Sex Education Delays Teens' Sexual Activity http://www.huffingtonpost.com/2012/03... "Teens who receive formal sex education wait longer to have sex, a new study finds - and when they do get around to doing the deed, they're more likely than teens who haven't had sex ed to use contraception." Sex Education in the U.S. is Screwing Our Kids http://www.salon.com/2014/12/01/why_s... "Government-funded abstinence programs and a lack of instructor training are failing the country's teens." Teaching Good Sex http://www.nytimes.com/2011/11/20/mag... "Across the country, the approach ranges from abstinence until marriage is the only acceptable choice, contraceptives don't work and premarital sex is physically and emotionally harmful, to abstinence is usually best, but if you must have sex, here are some ways to protect yourself from pregnancy and disease."