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Extended or shortened sleep duration linked to weight gain

WESTCHESTER, Ill. -- Body Mass Index (BMI) varies as a function of habitual sleep duration, according to a research abstract that will be presented on Thursday, June 11, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies.

New Definition Could Further Limit Habitable Zones Around Distant Suns

As astronomers gaze toward nearby planetary systems in search of life, they are focusing their attention on each system's habitable zone, where heat radiated from the star is just right to keep a planet's water in liquid form.

A number of planets have been discovered orbiting red dwarf stars, which make up about three-quarters of the stars close to our solar system.

Sleep apnea linked to sleepwalking, hallucinations and other 'parasomnias'

MAYWOOD, Il. -- Nearly 1 in 10 patients with obstructive sleep apnea also experience "parasomnia" symptoms such as sleepwalking, hallucinations and acting out their dreams, a Loyola University Chicago Stritch School of Medicine study has found.

Plant-based, low-carb diet may promote weight loss and improve cholesterol levels

Overweight individuals who ate a low-calorie, low-carbohydrate diet high in plant-based proteins for four weeks lost weight and experienced improvements in blood cholesterol levels and other heart disease risk factors, according to a report in the June 8 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

New proxy reveals how humans have disrupted the nitrogen cycle

PROVIDENCE, R.I. [Brown University] -- More and more, scientists are getting a better grip on the nitrogen cycle. They are learning about sources of nitrogen and how this element changes as it loops from the nonliving, such as the atmosphere, soil or water, to the living, whether plants or animals.

Language use decreases in young children and caregivers when television is on, study finds

In a new study, young children and their adult caregivers uttered fewer vocalizations, used fewer words and engaged in fewer conversations when in the presence of audible television. The population-based study is the first of its kind completed in the home environment, guided by lead researcher Dimitri A.

Common autism medication is ineffective for repetitive behaviors, study finds

Citalopram (Celexa), a medication commonly prescribed to children with autism spectrum disorders (ASD), was no more effective than a placebo at reducing repetitive behaviors, according to a multi-site clinical trial guided by lead author Bryan H.

Study shows CGM devices also benefit people with type 1 diabetes

NEW YORK, May 27, 2009 ? People with type 1 diabetes who have already been successful in achieving recommended blood sugar goals can further benefit from using continuous glucose monitoring (CGM) devices, according to results of a major multi-center clinical trial by the Juvenile Diabetes Research Foundation.

NASA/University team develops new method to find alien oceans

GREENBELT, Md. -- NASA-sponsored scientists looking back at Earth with the Deep Impact/EPOXI mission have developed a method to indicate whether Earth-like alien (extrasolar) worlds have oceans.

PET scan can non invasively measure early assessment of treatment for common type of breast cancer

Seattle ? Non-invasive imaging can measure how well patients with the most common form of breast cancer - estrogen receptor positive type - respond to standard aromatase inhibitor therapy after only two weeks and shows similar findings that more invasive needle sampling identifies, according to a poster presentation to be presented at the ASCO annual meeting next week.

Using Positron Emis

'Biodiversity beyond the habitat's borders'

Recently, images of melting sea ice and shrinking rainforests have highlighted the world's biodiversity crisis and made us aware of the need to find a balance between preserving natural ecosystems while still having enough land for human use.

Younger men with advanced prostate cancer have shorter survival times

While young men with prostate cancer have a low risk of dying early, those with advanced forms of cancer do not live as long as older men with similar forms of the disease. That is the conclusion of a new study published in the July 1, 2009 issue of CANCER, a peer-reviewed journal of the American Cancer Society.

2 studies examine medical consequences of police use of force during restraint

Dr. Jared Strote at the University of Washington Medical Center led a group that examined the medical records of nearly 900 patients subdued by the Seattle Police Department with a Taser over a six-year period. Less than one percent required hospital admission for an injury related to the restraint incident. No deaths occurred, even when patients exhibited signs of excited delirium.

Parental guidelilnes, consequences may be why fewer black teens smoke than whites

It's a curious paradox. Black adults are more likely to smoke than white adults and most smokers start as teenagers. But statistics show that fewer black youths than whites begin smoking as adolescents.

Researchers gain genome-wide insights into patterns of the world's human population structures

Through sophisticated statistical analyses and advanced computer simulations, researchers are learning more about the genomic patterns of human population structure around the world.

Revealing such patterns provides insights into the history of human evolution, the predominant evolutionary forces that shaped local populations, and the relationships among populations.



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