Vaccine may protect against bird flu WEST LAFAYETTE, Ind., April 18 (UPI) -- A vaccine under development may provide protection against highly pathogenic bird flu and its evolving forms, U.S. researchers suggest.

Many cities becoming 'food deserts' LONDON, Ontario, April 18 (UPI) -- Canadian researchers warn some urban areas lack supermarkets and are at risk of becoming "food deserts."

Overusing codeine increases migraine risk CHICAGO, April 18 (UPI) -- Overusing codeine, oxycodone and barbiturates to help migraine increases the risk of chronic migraine, a U.S. study found.

Sign language interpreters at injury risk ROCHESTER, N.Y., April 18 (UPI) -- Sign language interpreters, just like many workers who make repetitive hand motions, are at risk for carpal tunnel syndrome and tendonitis, a U.S. study says.

Before the beach, more get liposuction WASHINGTON, April 18 (UPI) -- As Americans prepare for beach season some head for the gym and some head for a plastic surgeon's office, a U.S. expert says.

Depression stigma higher among men ACTON, Australia, April 18 (UPI) -- Personal stigma associated with depression is higher among men and the less educated, an Australian study said.

How sexual perpetrators entrap children COLUMBIA, Mo., April 18 (UPI) -- A sexual perpetrator must first gain access to a victim through various exploitative means such as "deceptive trust development," a U.S. researcher said.

Expert: Media doesn't cover prevention EAST LANSING, Mich., April 18 (UPI) -- A U.S. expert, who says the media can be more influential than physicians, blames the media for not reporting enough on how to prevent breast cancer

Computer game helps COPD patients breathe HINES, Ill., April 18 (UPI) -- Breath-controlled computer games work as a new rehabilitation tool for patients with chronic obstructive pulmonary disease, a U.S study shows.

Anti-psychotics, elderly pneumonia linked UTRECHT, Netherlands, April 18 (UPI) -- Elderly patients taking anti-psychotic drugs have a 60 percent increased risk of pneumonia, a Dutch study finds.

Fit males don't always get the girl LOS ANGELES, April 18 (UPI) -- U.S. researchers say warriors may win the spoils, but don't evolve toward super-aggressiveness because the fittest males don't always get the girl.

1 in 5 Iraq, Afghanistan vets have PTSD SANTA MONICA, Calif., April 18 (UPI) -- Some 300,000 Iraq and Afghanistan veterans suffer from post-traumatic stress disorder or major depression, a U.S. study found.

Loop diuretics linked to bone loss in men DERBY, Conn., April 18 (UPI) -- Older men who take loop diuretics for heart failure and hypertension appear to have increased rates of hip bone loss than other men, a U.S. study said.

Study: Sleep loss is top menopause symptom TUCSON, April 17 (UPI) -- The biggest problem for women entering menopause is getting a good night's sleep, U.S. researchers said.

Flu shot effective for predominant strain ATLANTA, April 17 (UPI) -- This year's flu shot protected against the predominant virus despite a less than optimum match in two vaccine components, a U.S. official said.

Solvents may hurt brain circuitry AMSTERDAM, Netherlands, April 17 (UPI) -- Occupational exposure to organic solvents in paints, printing and dry cleaning agents may affect chemical interactions in the brain, Dutch researchers say.

Hassles with boss, co-workers steal sleep ANN ARBOR, Mich., April 17 (UPI) -- U.S. researchers show that work conditions such as conflicts with bosses or co-workers affect sleep patterns, not the other way around.

Vitamin D may protect against PAD ATLANTA, April 17 (UPI) -- People with low vitamin D levels may face an increased risk for peripheral artery disease, also known as PAD, New York researchers said.

Kids need more walking, less screen time AMES, Iowa, April 17 (UPI) -- Less than half of U.S. children meet the American Academy of Pediatrics guidelines that boys take 11,000 steps and girls take 13,000 a day, a study found.

Study: Belly fat demands to be fed LONDON, Ontario, April 17 (UPI) -- That hungry feeling may be belly fat demanding more food to make more belly fat, Canadian researchers found.

Baby boomers: The unhappiest generation CHICAGO, April 17 (UPI) -- U.S. adults grow happier as they grow older, but baby boomers -- those born from 1946 to 1964 -- are not as content as other generations, a study found.

Shriners to replace Montreal hospital MONTREAL, April 17 (UPI) -- The Shriners fraternal organization said Thursday it will replace its 83-year-old pediatric orthopedic hospital in Montreal with a new facility.

Men have more problems with thinking ROCHESTER, Minn., April 17 (UPI) -- A study of 2,050 people living in Olmsted County, Minn., found men were one-and-a-half times more likely to have mild cognitive impairment than women.

Older men pickier in choosing sex partners BLOOMINGTON, Ind., April 17 (UPI) -- Older men say as they have aged, they have become more careful and particular in choosing sexual partners, a U.S. researchers found.

Flu vaccine beneficial for those with COPD NEW DELHI, April 16 (UPI) -- Annual flu vaccines help keep those with chronic obstructive pulmonary disease, or COPD, from worsening, researchers in India say.

Same-day mastectomy discharge reviewed ST. JOHN'S, Newfoundland, April 16 (UPI) -- The premier of Canada's Newfoundland and Labrador asked health officials to review having a woman sent home the same day after a double mastectomy.

Researchers say pollution hurts asthmatics BETHESDA, Md., April 16 (UPI) -- Inner-city children with asthma may be particularly vulnerable to air pollution at levels below current air quality standards, U.S. researchers said.

Chinese club moss may help Alzheimer's CHENGDU, China, April 16 (UPI) -- An extract of Chinese club moss, Huperzine A, may help those with Alzheimer's disease, a researcher in China suggests.

More calories up pancreatic cancer risk SAN DIEGO, April 16 (UPI) -- U.S. researchers say mice fed less calories had sharply reduced development of pancreatic cancer.

Less smoking, drinking delays Alzheimer's MIAMI, April 16 (UPI) -- Heavy drinkers and heavy smokers develop Alzheimer's disease earlier than those with Alzheimer's who don't drink or smoke heavily, a U.S. study said,.

U.S. agency concerned over baby bottle BPA DURHAM, N.C., April 16 (UPI) -- The National Toxicology Program says the plastics chemical Bisphenol A may be linked to common U.S. reproductive and developmental problems.

High cholesterol in 40s, Alzheimer's later CHICAGO, April 16 (UPI) -- High cholesterol during a person's 40s has been linked to Alzheimer's disease later in life, U.S. and Finnish researchers say.

Girls' clothing tied to mental health LONDON, April 16 (UPI) -- The type of clothing worn by young girls could influence their likelihood of suffering mental problems later, British researchers say.

Onion juice may help patchy hair loss HOBART, Australia, April 16 (UPI) -- Onion juice could help some people with patchy hair loss resulting from the disease alopecia areata, an Australian researcher says.

No real evidence for gang prevention OXFORD, England, April 16 (UPI) -- There is no evidence after-school clubs or cognitive-behavioral interventions can prevent youth age 7 to 16 from joining a gang, a British review said.

Parents can help children deal with stress BINGHAMTON , N.Y., April 15 (UPI) -- Without the stress of everyday life, life may get boring, but a U.S. expert says stress overload can cause a child to be withdrawn, depressed or suicidal.

Fewer dying in accidents in Germany MARBURG, Germany, April 15 (UPI) -- Accidents of all sorts still happen all the time in Germany but fewer are fatal these days, researchers say.

CDC warns travelers to Israel of measles ATLANTA, April 15 (UPI) -- Americans traveling to Israel for Passover should be protected against measles because of a 900-case outbreak of the disease there, U.S. health officials said.

Blood test found for sinusitis AUGUSTA, Ga., April 15 (UPI) -- U.S. researchers have identified a blood test to allow future diagnosis and treatment of chronic sinusitis.

Hispanics have different depression rates ROSLINDALE, Mass., April 15 (UPI) -- Puerto Ricans 59 and older have higher rates of depression than other Hispanics living in the United States, researchers said.

Making choices can be mentally draining MINNEAPOLIS, April 15 (UPI) -- Many choices -- even good choices such as a gift registry -- can became mentally draining, U.S. researchers said.

Barriers persist for fitness in girls MINNEAPOLIS, April 15 (UPI) -- U.S. girls are participating in sports in record numbers, but their physical activity outside of organized sports is declining, U.S. researchers said.

Rheumatoid arthritis victims work more BOSTON, April 15 (UPI) -- The employability of men and women with advanced rheumatoid arthritis has improved since the mid-1980s, a Boston University study found.

DASH diet lowers heart attack risk BOSTON, April 15 (UPI) -- A 24-year U.S. study of 88,517 women found lowered risk of heart disease and stroke for those who ate little meat, low-fat dairy products and lots of produce.

How smoking encourages infection LOUISVILLE, Ky., April 15 (UPI) -- Nicotine affects the short-lived white blood cells that defend against infection, by reducing their ability to seek and destroy bacteria, a U.S. study said.

FDA approves one in three kids' drugs ANN ARBOR, Mich., April 15 (UPI) -- Many parents do not realize less than one-third of drugs are U.S. government approved for children, researchers said.

Testosterone may explain irrational trades CAMBRIDGE, England, April 15 (UPI) -- What seems to be irrational trading during market crashes and bubbles may be explained by testosterone levels among traders, British researchers said.

U.S. healthcare not ready for baby boomers WASHINGTON, April 14 (UPI) -- The U.S. healthcare work force will be too small and unprepared to meet the needs of 78 million baby boomers who are getting ready to retire, researchers said.

Why vitamin D wards off colon cancer ATLANTA, April 14 (UPI) -- U.S. researchers say they are learning how vitamins and minerals can stimulate or prevent the development of colon cancer.

Pot use among Canadian adults up TORONTO, April 14 (UPI) -- Marijuana use by Ontario adults is up 75 percent from 8 percent in 1977 to 14 percent in 2005, a Canadian report found.