NEW YORK (Reuters Health) - People who start having sex at a younger or older than average age appear to be at greater risk of developing sexual health problems later in life, a new study suggests.

NEW YORK (Reuters Health) - Childbirth and the psychiatric disorders anorexia and depression can affect a woman's sex life, but in different ways, a small study suggests.

WASHINGTON (Reuters) - Circumcision may reduce a man's risk of infection with the AIDS virus by up to 60 percent if he is an African, but it does not appear to help American men of color, U.S. researchers reported on Monday.

WASHINGTON (Reuters) - Lives are at risk because the U.S. Food and Drug Administration is woefully behind in the latest scientific advances and is under funded, a panel of advisers to the agency said at a public meeting on Monday.

WASHINGTON (Reuters) - Plump babies may really be happier babies, Canadian and British researchers reported on Monday in a study that found people who had a low birth weight were more likely to have depression and anxiety later in life.

NEW YORK (Reuters Health) - A spoonful of honey can quiet children's nighttime cough and help them -- and their parents -- sleep better, a new study shows.

JOHANNESBURG (Reuters) - South Africa, which has one of the world's worst AIDS epidemics, has made headway in fighting the HIV virus, but condom use is still insufficient, government leaders said on Saturday.

TEHRAN (Reuters) - Iran is fighting the spread of the AIDS virus by treating sufferers for free but taboos about the issue in the Islamic Republic are hindering efforts to raise public awareness, Iranian health officials said on Saturday.

WARSAW (Reuters) - Two poultry farms north-west of Warsaw were cordoned off after the deadly H5N1 strain of bird flu was found in turkeys, Polish officials said on Saturday.

JOHANNESBURG (Reuters) - South Africa, that has one of the world's worst AIDS epidemics, has made headway in fighting the HIV virus, but condom use is still insufficient, government leaders said on Saturday.

WARSAW (Reuters) - Three poultry farms northwest of Warsaw were cordoned off after the deadly H5N1 strain of bird flu was found in turkeys, officials said on Saturday.

WASHINGTON (Reuters) - The government is raising its estimate of how many Americans are becoming infected with the AIDS virus every year by 50 percent, according to newspaper reports on Saturday.

KAMPALA (Reuters) - Two more Ugandans have died of a new strain of the deadly Ebola virus in an outbreak near the border with Democratic Republic of Congo, bringing the death-toll to 18, health officials said on Saturday.

WASHINGTON (Reuters) - After waiting a month, Democratic leaders in Congress said on Friday they would formally send a bill expanding a popular children's health-care program to the White House despite a veto threat.

GAITHERSBURG, Maryland (Reuters) - Thoratec Corp's newest implanted heart pump should be approved for keeping patients alive while they wait for heart transplants, a advisory panel unanimously said on Friday.

LOS ANGELES (Reuters) - Amgen Inc said on Friday interim results from an independent study involving breast cancer patients found its anemia drug Aranesp did not enhance the effect of chemotherapy prior to surgery.

WASHINGTON (Reuters) - Researchers who figured out how to make valued embryonic stem cells out of ordinary skin cells said on Friday they had found a way to cut one cancer-causing ingredient out of the mix.

MOUNT AIRY, Maryland (Reuters) - President George W. Bush on Friday announced a trip to Africa early next year for a first-hand look at U.S.-sponsored HIV/AIDS programs and pressed Congress to approve a doubling of funds to combat the disease globally.

LONDON (Reuters) - Genetic tests to assess disease risk are proliferating but many are a waste of money and tell people little more than they would know from studying family history, medical experts said on Friday.

BEIJING (Reuters) - Chinese President Hu Jintao visited a number of AIDS patients and their families on Friday, a public show of solidarity in a country where HIV/AIDS sufferers still face widespread stigmatization.

ZURICH (Reuters) - Roche Holding AG's richly-valued stock could take a significant hit next week if a U.S. regulatory panel advise against approving its key Avastin drug in breast cancer, analysts said.

GENEVA (Reuters) - The World Health Organization expressed concern on Friday about the emergence of a new strain of the Ebola virus that has infected 51 people and killed 16 in western Uganda.

SYDNEY (Reuters) - Two out of three Australian women binge drink, with some knocking back more than 11 alcoholic beverages in a single sitting, according to a survey.

BEIJING (Reuters) - Asia-Pacific countries are not doing enough to tackle a growing AIDS crisis among men who have sex with men, hampered by social stigma and discriminatory laws, according to an advocacy group.

LONDON (Reuters) - A new rapid test for chlamydia, the world's most common sexually transmitted infection, has proved successful in trials and could help rein in a worrying rise in the disease, British scientists said on Friday.

WASHINGTON (Reuters) - Researchers aiming to establish whether high cholesterol raises the risk of stroke said on Thursday they were baffled by findings indicating lower cholesterol levels were not linked to reduced stroke deaths.

COLLEGE PARK, Maryland (Reuters) - Public health advocates on Thursday called for tighter restrictions on salt content in food, arguing that cutting the nutrient's overuse by most Americans could save thousands of lives annually.

WASHINGTON (Reuters) - A program backed by U.S. health authorities brought HIV tests to about 24,000 people at high risk for infection who otherwise might have been missed by AIDS prevention efforts, officials said on Thursday.

NEW YORK (Reuters Health) - Many volunteers who take part in clinical trials of experimental HIV vaccines report negative social consequences because of their participation in the studies, according to a new report.

WASHINGTON (Reuters) - U.S. health officials received thousands of complaints earlier this year about pets killed by contaminated pet food, but veterinarians said on Thursday they had been able to confirm just 224 deaths.

NEW YORK (Reuters Health) - The substantial benefits of hip replacement for osteoarthritis are sustained in the long-term, British investigators report.

NEW YORK (Reuters Health) - Though some have blamed the U.S. obesity problem on the corn syrup ubiquitous in processed foods, a new study casts some doubt on this idea.

CHICAGO (Reuters Health) - Stereoscopic digital mammography, which gives a 3-dimensional view of the inner structures of the breast, cuts the number of falsely diagnosed tumors in half, compared with conventional mammography, researchers reported here this week.

UNITED NATIONS (Reuters) - One in three adults in the world's top industrial democracies say they know little or nothing about AIDS, a disease thought to have killed more than 28 million people in the past 26 years, a poll showed on Thursday.

LONDON (Reuters) - A sticky molecule previously linked to inflammation also helps seal vital insulation around peripheral nerves, making it a potential target for new drugs against nerve disorders, scientists said on Thursday.

COLLEGE PARK, Maryland (Reuters) - U.S. health regulators on Thursday debated a consumer group's bid to boost regulation of salt in food and revoke the ingredient's "generally recognized as safe" status.

WASHINGTON (Reuters) - Most governments are working quickly to attack avian flu when it pops up among birds but the virus is now entrenched in at least three countries, the United Nations and World Bank reported on Thursday.

NEW YORK (Reuters Health) - Stents coated with the drug sirolimus are safe and effective for treating elderly heart patients with blocked coronary arteries, according to a new report.

BEIJING (Reuters) - China has published a blacklist of substandard toy jugs and children's shoes sold at Wal-Mart stores and drawing pens from French retailer Carrefour in a quality sweep on children's goods sold at Beijing supermarkets.

ATLANTA (Reuters) - Poor black women in U.S. cities face a greater risk of getting cancer because of unhealthy diets, according to a report released on Wednesday that says the finding applies to other ethnic groups.

BEIJING (Reuters) - The rate of new HIV/AIDS infections in China is slowing and is now mainly being transmitted through sex, which the government could tackle with a circumcision campaign, the health minister said on Thursday.

CHICAGO (Reuters) - After 25 years of successive increases, obesity rates in the United States are holding steady, government health officials said on Wednesday.

NEW YORK (Reuters Health) - An analysis of genealogy records linked to death certificates in Utah suggests that the risk of dying from an asthma attack is hereditary.

BOSTON (Reuters) - They save lives and speed diagnosis but the 62 million CT scans done in the United States each year may soon be responsible for 2 percent of all cancers, two researchers said on Wednesday.

GAITHERSBURG, Maryland (Reuters) - U.S. regulatory advisers on Wednesday recommended strengthening safety warnings on GlaxoSmithKline Plc's asthma drug Serevent amid new reports of deaths in children taking the drug.

CHICAGO (Reuters) - Having high blood pressure reduces blood flow in the brains of Alzheimer's patients, making them more vulnerable to the effects of the disease, researchers reported on Wednesday.

CHICAGO (Reuters) - Autistic children have more gray matter in areas of the brain that control social processing and sight-based learning than children without the developmental disability, a small study said on Wednesday.