According to a group of London-based fertility specialists the increase in women over 35 having children is cause for some alarm.

They say the best age for pregnancy remains 20 to 35

More than half of American teens ages 15 to 19 have engaged in oral sex, increasing to nearly 70% for those who are 18 and 19, according to the largest federal study of the nation's sexual practices.

Findings now suggest a shift in sexual practices, in which females are using oral and lesbian sex "as a safer alternative than [vaginal] sex with men

A new study reveals new digital mammogram techniques are better than standard X-rays at spotting cancer. The American College of Radiology Imaging Network studied 50,000 patients, finding standard film X-ray mammograms work just as well for most post-menopausal women. Digital mammographies, however, detect up to 28-percent more cancers than standard mammograms in younger women.

Constantine Gatsonis, network statistician for ACRIN and one of the study's researchers says, "The data show that digital mammography is, on average, as good at detecting breast cancer as film mammography -- and in some important subgroups of women, digital performs even better. Neither film nor digital mammography is able to catch every cancer. So, this study data can be used to develop and improve mammography in the coming years

More than half of American teens ages 15 to 19 have engaged in oral sex, increasing to nearly 70% for those who are 18 and 19, according to the largest federal study of the nation's sexual practices.

Findings now suggest a shift in sexual practices, in which females are using oral and lesbian sex "as a safer alternative than [vaginal] sex with men

More women, mainly those in their late teens and 20s, are experimenting with bisexuality, or feel more comfortable reporting same-sex encounters, according to a survey by the Centers for Disease Control and Prevention.

The report, released Thursday, finds 11.5 percent of women aged 18 to 44, say they've had at least one sexual experience with another woman at some point in their lifetime. This compares with about 4 percent of women, 18 to 59, who say they had such encounters in a similar survey conducted ten years earlier