When guessing the weight of an ox or estimating how many marbles fill a jar, the many have been shown to be smarter than the few. These collective displays of intelligence have been dubbed "the wisdom of crowds," but exactly how many people make a crowd wise?

New research by Santa Fe Institute Professor Mirta Galesic and her colleagues from the Max Planck Institute for Human Development in Berlin suggests that larger crowds do not always produce wiser decisions. In fact, when it comes to qualitative decisions such as "which candidate will win the election" or "which diagnosis fits the patient's symptoms," moderately-sized "crowds," around five to seven randomly selected members, are likely to outperform larger ones.

URBANA, Ill. - Binge eating is the most prevalent type of eating disorder across races, ethnic groups, ages, and genders. Surprisingly, binge eating has even been reported in children as young as 5 years old.

In order to put childhood binge eating into context, a new systematic review from the University of Illinois identifies two potential risk factors for binge eating in children under the age of 12. With family being the most proximal and influential setting affecting behaviors and attitudes in children, the study reports that parental non-involvement or emotional unresponsiveness and weight-related teasing in the family are behaviors consistently associated with childhood binge eating.

Anyone who's gone camping has seen birds foraging for picnic crumbs, and according to new research in The Condor: Ornithological Applications, the availability of food in campgrounds significantly alters jays' behavior and may even change how they interact with other bird species.

ARLINGTON HEIGHTS, ILL (June 29, 2016) - If you have a child with newly-diagnosed eczema, you may be wondering how often you should bathe him. You are not alone. For more than 100 years, doctors have been asked about the risks and benefits of frequent bathing for those with atopic dermatitis (eczema). And parents haven't gotten consistent responses.

A new article in Annals of Allergy, Asthma and Immunology, the scientific publication of the American College of Allergy, Asthma and Immunology (ACAAI) looks at the research and answers the question. According to the authors, daily bathing is fine, as long as it's followed by lots of moisturizer. In other words, "soak and smear."

CLEVELAND, Ohio (Wednesday, June 29, 2016)--In an article publishing online today in Menopause, the journal of The North American Menopause Society (NAMS), Rosamar E.F. Rezende, MD, PhD, and colleagues in São Paulo present results of their study testing the efficacy of aerobic exercise in postmenopausal women with nonalcoholic fatty liver disease (NAFLD). NAFLD is considered a cardiovascular disease risk factor, independent of other risk factors, and is associated with insulin resistance, abdominal obesity, hypertension, dyslipidemia, and type 2 diabetes mellitus. Clinical manifestations include steatosis, fibrosis, cirrhosis, and hepatocellular carcinoma.

Crucial peatlands carbon-sink vulnerable to rising sea levels, research shows

Rising sea-levels linked to global warming could pose a significant threat to the effectiveness of the world's peatland areas as carbon sinks, a new study has shown.

The pioneering new study, carried out by Geographers at the University of Exeter, examined the impact that salt found in sea water has on how successfully peatland ecosystems accumulate carbon from the atmosphere.

Crucial peatlands carbon-sink vulnerable to rising sea levels. Credit: Alex Whittle / University of Exeter

Fog, blizzards, gusts of wind - poor weather can often make the operation of rescue helicopters a highly risky business, and sometimes even impossible. A new helmet-mounted display, developed by researchers at the Technical University of Munich (TUM), may in the future be able to help pilots detect hazards at an early stage, even when their visibility is severely impaired: the information required to do this is created in an on-board computer and imported into digital eye glasses. A new study has shown that this augmented reality improves the performance of pilots.

Bottom Line: Women with a history of severe cervical intraepithelial neoplasia, a precancerous condition of the cervix that arises from infection with the human papillomavirus (HPV), had a long-term increased risk of developing anal, vulvar, and vaginal cancer.

Journal in Which the Study was Published: Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

Author: Susanne Krüger Kjær, a professor of gynecological cancer epidemiology at The Danish Cancer Society Research Center and Department of Gynecology at the Juliane Marie Centre, Rigshospitalet, Copenhagen University Hospital, Denmark.

Climate has influenced the distribution patterns of Adélie penguins across Antarctica for millions of years.

The geologic record shows that as glaciers expanded and covered Adélie breeding habitats with ice, penguin colonies were abandoned. When the glaciers melted during warming periods, this warming positively affected the Adélie penguins, allowing them to return to their rocky breeding grounds.

But now, University of Delaware scientists and colleagues report that this beneficial warming may have reached its tipping point.

WASHINGTON -- Contrary to the opinions of some courts, it is easier to determine the truthfulness of a woman wearing a headscarf or even a veil that leaves only her eyes exposed than a woman wearing no head covering at all, according to research published by the American Psychological Association.

"The presence of a veil may compel observers to pay attention to more 'diagnostic' cues, such as listening for verbal indicators of deception," said Amy-May Leach, PhD, of the University of Ontario Institute of Technology. The study was published in the APA journal Law and Human Behavior.