SCIENCE

Welsh researchers said the risk of psychosis seems to be higher in cities than in rural areas. This may be a reflection of increased social fragmentation in cities.

The more education a person has, the lower the heart and stroke risk, U.S. researchers say, at least in high-income countries.

U.S. and British researchers say that drinking and withdrawal from chronic drinking can increase the stress hormone cortisol, raising the risk of memory loss.

African Americans are known to have a higher rate of heart disease and stroke than whites, and a new study suggests that those excess risks emerge at a relatively young age.

An estimated five million uninsured children in the United States were eligible for Medicaid or the Children's Health Insurance Program (CHIP) but were not enrolled in either plan, according to a new report.

Transmission of the AIDS virus seems to be out of control among gay men in France despite an overall fall in the number of new HIV cases in the country, according to a study published on Thursday.

Younger chief executives with high testosterone levels may be more likely to try a hostile takeover -- and to get burned in the attempt, Canadian researchers said on Wednesday.

Johnson & Johnson has pledged grant money, drugs and research funding for new HIV and tuberculosis medications as part of a five-year, private sector effort to improve the health up to 120 million women and children in developing nations each year.

New U.S. reforms are poised to dramatically shift the nation's healthcare spending, not only curbing Medicare costs but also pumping more money toward the private sector as roughly 32 million people gain coverage.

Tests of tumor samples taken before and after treatment with an experimental melanoma pill helped researchers find the right dose in early stage testing, an approach that may boost the drug's chances of success and aid in developing others, company researchers said on Tuesday.

Daily tablets of large doses of B vitamins can halve the rate of brain shrinkage in elderly people with memory problems and may slow their progression toward dementia, data from a British trial showed on Wednesday,

Drugmaker Wyeth used ghostwriters to play up the benefits and downplay the harm of hormone replacement therapy in articles published in medical journals, U.S. researchers said on Tuesday.

Long-term weight loss may release into the blood industrial pollutants linked to illnesses like diabetes, hypertension and rheumatoid arthritis, researchers said on Tuesday.

A U.S. judge refused on Tuesday to lift a ban on federal funding of human embryonic stem cell research despite Obama administration warnings it would set back key research and cost more than a thousand jobs.

China's toughest ever smoking ban which aims to stop people lighting up during November's Asian Games will carry fines of $7, state media said on Wednesday, a limited deterrent to smokers in one of China's richest cities.

Smokers developing lung cancer may get a cure in the common diabetes drug metformin, Reuter reports according to National Cancer Institute research findings on Wednesday. Metformin prevented lung tumor growth in mice exposed to a cancer-causing agent found in tobacco.

The less you sleep the more pounds you gain. Wondering from where the extra calories come from?

Medical malpractice liability costs the U.S. healthcare system more than $55 billion a year, most of it in defensive medical practices such as extra tests and scans, according to a report released on Tuesday.

The hallucinogen psilocybin -- known by the street name magic mushrooms -- may help ease the anxiety that often accompanies late-stage cancer, U.S. researchers said on Monday.

A lowering of blood pressure to 130/80 or below is not the solution to check kidney damage among African Americans who generally have a higher than average high blood pressure, reported Reuters.

It is common belief that staying mentally active in old age keeps Alzheimer's at bay. But once a person develops dementia despite engaging in brain exercises, he is more prone to extensive brain damage, Reuters reports according to Neurology, an online journal. This does not mean that a mentally stimulating lifestyle is a bad thing.

An underactive thyroid gland may make you live longer, according to a recent Dutch study from Reuters. However, the researchers emphasize it doesn't prove that a sluggish thyroid function delays aging. Further dedicated research and clinical trial is needed to establish the fact, it says.

A new molecular test can diagnose tuberculosis faster than the currently available tests. Even the drug-resistant types can be easily diagnosed, according to Geneva-based scientists.

Lifestyle change is difficult work and often requires the support of others. When undertaking a major life change, it is generally important to seek the assistance and guidance of professionals to encourage you and equip you with new tools and information to help.

People who take a commonly used class of osteoporosis drugs called bisphosphonates for more than five years may be doubling their risk of developing cancer of the gullet or esophagus, a British study found on Friday.

An estimated five million uninsured children in the United States were eligible for Medicaid or the Childrens Health Insurance Program (CHIP) but were not enrolled in either plan, according to a new report.

An experimental Novartis drug can clear malaria infection in mice with a single dose and scientists say it shows promise as a possible future treatment for one of the world's major killer diseases.

It wasn't what you would call a casual get-together.

The Obama administration will spend $5 billion to reimburse 80 percent of the companies' health insurance costs provided to early retirees who leave the US workforce between the ages of 55 to 64.