Young Europeans use alcohol to get sex LIVERPOOL, England, May 9 (UPI) -- Teens and young adults in Europe drink and take drugs as part of deliberate sexual strategies, researchers say.

Study: Fight HIV with male circumcision BOSTON, May 9 (UPI) -- Human immunodeficiency virus, or HIV, prevention programs in Africa should promote male circumcision and discourage multiple partners, U.S. researchers say.

High fat diet linked to prostate cancer HOUSTON, May 9 (UPI) -- Men who ate diets low in saturated fat after having the prostate removed to treat cancer had better survival rates, a U.S. study said.

Victim often knows sexual attacker DURHAM, N.H., May 9 (UPI) -- A University of New Hampshire study shows that the vast majority of incidents of unwanted sex on campus are perpetrated by someone the victim knows.

Class Socratic method develops thinking STOCKHOLM, Sweden, May 8 (UPI) -- Classroom "Socratic seminars" used on a regular basis with more and more voices heard develop thinking, Swedish researchers said.

Vitamin D makes kidney disease less deadly SEATTLE, May 8 (UPI) -- A U.S. study suggests treatment with vitamin D may reduce the risk of death from kidney disease.

Adult stem cells safe in gene therapy DAVIS, Calif., May 8 (UPI) -- Human bone marrow-derived stem cells used in gene therapy do not cause the development of tumors or leukemia, U.S. researchers said.

Stable homes mitigate post-divorce harms MANSFIELD, Ohio, May 8 (UPI) -- Children in unstable family situations after their parents divorce fare worse as adults than children in stable post-divorce situations, a U.S. study said.

Caring for family can make women poor WASHINGTON, May 8 (UPI) -- In addition to giving flowers on Mother's Day, children may want to make a contribution to a mother's individual retirement account, a U.S. group suggests.

Obesity linked to increased dementia risk BALTIMORE, May 8 (UPI) -- An analysis of the data of several studies shows a clear association between obesity and an increased risk for dementia, U.S. researchers say.

Ultrasound first, not CT, for appendicitis HAIFA, Israel, May 8 (UPI) -- Color Doppler ultrasound, not computed tomography, or CT, should be the first test for adults with suspected acute appendicitis, an Israeli study said.

Arthritis keeps diabetics from exercising ATLANTA, May 8 (UPI) -- More than half of adults with diabetes also have arthritis, which can make it difficult for them to get the exercise they need, a U.S. study said.

Restaurant tobacco ban halts teen smoking BOSTON, May 8 (UPI) -- Teens in towns that ban smoking in restaurants are less likely to become longtime smokers, a U.S.study found.

Pregnant women discriminated against WASHINGTON, May 8 (UPI) -- U.S. studies suggest pregnant women face judgments and discrimination when applying for jobs.

New carbon nanotube technology reported COVENTRY, England, May 8 (UPI) -- British scientists say they've created a technology that can produce carbon nanotubes that instantly form a highly sensitive, ready-made electric circuit.

Gambling a problem for many U.S. youth BUFFALO, N.Y., May 8 (UPI) -- Gambling is widespread among U.S. adolescents and young adults ages 14 through 21, a University at Buffalo Research Institute on Addictions study reveals.

Study shows how one man lived to age 114 BARCELONA , Spain, May 8 (UPI) -- A Mediterranean diet, a temperate climate, little stress and regular physical activity most likely explain why a Spanish man lived to age 114, researchers say.

New guidelines favor anti-depressants MANCHESTER, England, May 7 (UPI) -- The British Association of Pharmacology new treatment guidelines favor anti-depressants over cognitive behavioral therapy for depression.

Bereaved offspring at risk for PTSD PITTSBURGH, May 7 (UPI) -- Children of a parent who died suddenly have three times the risk of depression than those with living parents, a U.S. study finds.

Kidney disease rougher for blacks BETHESDA, Md., May 7 (UPI) -- Kidney disease worsens in one-quarter of African-Americans despite high blood pressure treatment, a U.S. study said.

CDC: Sleep lack linked to obesity, smoking ATLANTA, May 7 (UPI) -- People who got less than six hours of sleep are more likely to be obese, physically inactive, smokers and alcohol users, a U.S. government report said.

New Clorox disinfectant kills both MRSAs OAKLAND, Calif., May 7 (UPI) -- The Clorox Co. says its Clorox Pro Quaternary All-Purpose Disinfectant Cleaner kills germs including methicillin-resistant Staphylococcus aureus, or MRSA.

Online virtual lives, school shooting link PORTLAND, Ore., May 7 (UPI) -- Being unable to distinguish the boundaries between virtual lives online and real life may contribute to a rash of school shootings, a U.S. researcher says.

Saliva HIV test gives results in minutes MONTREAL, May 7 (UPI) -- A saliva test could help speed up detection of human immmunodeficiency virus, or HIV, Canadian researchers say.