Ann arbor: Dating during the teen years takes a violent turn for nearly 1 in 6 young people, a new study finds, with both genders reporting acts like punching pulling hair, shoving and throwing things.

New York: While cigarette use is declining precipitously among youth, evidence indicates that American adolescents are turning to ethnically-linked alternative tobacco products, such as hookahs, cigars, and various smokeless tobacco products, according to a recent report from the Centers for Disease Control and Prevention.

Stony Brook: Do you jump to help the less fortunate, cry during sad movie scenes, or tweet and post the latest topics and photos that excite or move you? If yes, you may be among the 20 percent of our population that is genetically pre-disposed to empathy, according to Stony Brook University psychologists Arthur and Elaine Aron.

Washington: Consumption of three to six alcoholic drinks per week is associated with a small increase in the risk of breast cancer, and consumption in both earlier and later adult life is also associated with an increased risk, according to a study in the November two issue of JAMA.

Washington: An imbalance of female sex hormones among men in Western nations may be contributing to high levels of male obesity, according to new research from the University of Adelaide.

Washington: Research by McGill Sociology Professor Eran Shor, working in collaboration with researchers from Stony Brook University, has revealed that unemployment increases the risk of premature mortality by 63 per cent. Shor reached these conclusions by surveying existing research covering 20 million people in 15 (mainly western) countries, over the last 40 years.

Philadelphia: Blurred vision contributes to the risk of falling in older adults-but getting new glasses with a big change in vision prescription may increase the risk rather than decreasing it, according to a special article, '2013 Fry Lecture: Blurred Vision, Spectacle Corr & Falls in Older Adults' in the June issue of Optometry and Vision Science, official journal of the American Academy of Optometry.

Washington: In an analysis that included data from nine studies, having higher measures of walking speed among older adults was associated with increased length of survival, according to a recent study issue of JAMA.

Washington: The results of a new survey that find as much as 33% of Americans lose sleep during the summer months due to hectic summer schedules, vacations, allergies, and warmer weather.

Washington:  Waiting until marriage to have babies is now 'unusual' among less-educated adults close to 30 years old, Johns Hopkins University researchers found.