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NEW YORK -- Presurgical hypnosis may improve pain control during and after breast cancer surgery and cut costs as well, researchers said.

WASHINGTON -- Mississippi has exceeded the 30% obesity rate, the first time any state's population has done so, reported a health advocacy group. But 19 other states with large obese populations are not far behind.

HELSINKI -- Breast cancer may spring from the loss of cellular architecture that forms a barrier against oncogenes, investigators here reported.

SEATTLE -- Human embryonic stem cells can improve heart function after an infarction -- at least in rats, researchers said here.

AUSTIN, Tex. -- Cirrhosis may worsen alcohol-induced brain dysfunction by altering neural gene expression, investigators here reported.

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SYDNEY, Australia -- Calcium supplementation, alone or with vitamin D, reduced osteoporotic fractures in those 50 or older by 12%, researchers here reported.

MADISON, Wis. -- Viagra and other erectile dysfunction drugs may augment sexual pleasure over and above the primary indication of the drugs, investigators here suggested.

SAN FRANCISCO -- Infants who undergo bone-marrow transplantation may pay a price in a decline in communication and other developmental skills.

WASHINGTON -- Reversing a 15-year trend, physicians and health-industry groups are contributing substantially more money to Democratic presidential campaigns than to GOP efforts.

GRAZ, Austria -- Alefacept (Amevive) plus phototherapy cleared up psoriasis more quickly than alefacept alone, reported researchers here.

COLUMBUS, Ohio -- The night shift is not so dangerous after all, found epidemiologists who studied more than 3.2 million Swedish workers to see whether working after dark really carries an increased risk of cancer.

ROCKVILLE, Md. -- The FDA called today for sunscreen labels to include a warning about skin cancer and add information about ultraviolet A (UVA) protection as well as the ultraviolet B (UVB) ratings that are now standard.

LONDON -- Neither near death nor neurologic event nor a hallucinogenic-drug trip are prerequisites any more for a surreal out-of-body experience. A little video trickery can induce the feeling of observing the body as if one were another being.

BALAD, Iraq -- About a third of survivors of roadside bombings have tympanic membrane perforation in one or both ears, an injury that may be a marker for concussion.

BOSTON -- Obesity may be caused -- at least in some cases -- by a virus, researchers said here.

BALTIMORE -- An experimental model of epidermolysis bullosa simplex responded promptly to an antioxidant phytochemical found in broccoli and related plants, investigators here reported.

ROCKVILLE, Md. -- The FDA approved risperidone (Risperdal) today for schizophrenia in adolescents and for bipolar I disorder in pediatric patients as young as 10.