IOWA CITY, Iowa, Dec. 19 (UPI) -- The greater parietal lobe surface area in male brains is directly related to better performance on mental rotation tasks, U.S. researchers said.
NEW HAVEN, Conn., Dec. 19 (UPI) -- Many parents fear increased promiscuity if their daughters were to be vaccinated for human papilloma virus, U.S. researchers said.
SYDNEY, Dec. 19 (UPI) -- Head banging -- which some say began in 1968 at a Led Zeppelin concert -- increases the risk of head and neck injury, Australian researchers said.
ATLANTA, Dec. 19 (UPI) -- Being circumcised significantly reduced the risk of HIV infection in heterosexual African-American men known to be exposed to the virus, U.S. researchers say.
ST. LOUIS, Dec. 19 (UPI) -- People in Middle America may have larger middles from frequent buffet and cafeteria eating and perceived barriers to physical activity, U.S. researchers said.
BATH, England, Dec. 19 (UPI) -- Men sexually abused as children are 10 times more likely to contemplate suicide, but many are not diagnosed as depressed, researchers in Britain said.
ANN ARBOR, Mich., Dec. 19 (UPI) -- A walk in the park or looking at nature photos is more mentally refreshing than a walk in an urban environment or viewing urban photos, U.S. researchers say.
INDIANAPOLIS, Dec. 19 (UPI) -- Two U.S. researchers debunk several holiday myths, such as sugar makes kids hyperactive, suicides increase during the holidays and poinsettias are toxic.
BERN, Switzerland, Dec. 19 (UPI) -- A British study has spurred a Swiss doctor to advise that medicine's approach to heart disease should be broadened.
INDIANAPOLIS, Dec. 19 (UPI) -- There may seem to be countless recommendations on how to prevent or cure a hangover but U.S. researchers say there is no evidence any of them work.
OSLO, Norway, Dec. 18 (UPI) -- People are more likely to get cancer screenings close to Christmas, birthdays or other milestones, than any other time, researchers in Norway said.
ATLANTA, Dec. 18 (UPI) -- Travelers working in histoplasmosis-endemic areas such as El Salvador should take protective measures, U.S. health officials said.
ATLANTA, Dec. 18 (UPI) -- No one plans to be stranded, but unpredictable weather this month is leaving many U.S. motorists at a standstill, federal health officials said.
COLUMBIA, Mo., Dec. 18 (UPI) -- A U.S. researcher suggests people, despite cultural background or religion, experience the same neuropsychological functions during spiritual experiences.
AMSTERDAM, Netherlands, Dec. 18 (UPI) -- The same error that occurs very early in pregnancy develops into autism in one individual and schizophrenia in another, a Dutch researcher said.
WEST LAFAYETTE, Ind., Dec. 18 (UPI) -- Fast-food and table-service meals at restaurants are both larger and have more calories than meals prepared at home, U.S. researchers have learned.
LOS ANGELES, Dec. 18 (UPI) -- Women prefer mates who are recognized by their peers for their skills, abilities and achievements, U.S. researchers said.
GRANADA, Spain, Dec. 18 (UPI) -- Phenols present in extra-virgin olive oil drastically suppress overexpression of the cancer gene HER2 in human breast cancer cells, Spanish researchers said.
MILAN, Italy, Dec. 17 (UPI) -- The link between inflamed gums and heart disease shows that proper dental care can reduce the risk of atherosclerosis, Italian and British scientists said.
LEICESTERSHIRE, England, Dec. 17 (UPI) -- For those who want to lose weight, aerobic exercise is better at suppressing appetite than non-aerobic exercise, British researchers have found.
BLOOMINGTON, Ind., Dec. 17 (UPI) -- Bisexual research is vague, with research generally categorizing people as either "homosexual" or "heterosexual," U.S. researchers said.
NEW YORK, Dec. 17 (UPI) -- New York City subways are relatively safe but have the highest fatality rate of all U.S. mass transit -- possibly because of alcohol, researchers say.
Surfers ride the waves at Fort Point by the south tower of the Golden Gate Bridge in San Francisco on May 24, 2012. The bridge is set for its 75th anniversary celebration on May 27. UPI/Terry Schmitt
