Rise in testosterone level boosts young women's running capacity

A rise in the level of the male hormone testosterone significantly boosts young physically active women's capacity to run for longer, reveals the first study of its kind, published online in the British Journal of Sports Medicine.

Climate change concerns have largely ignored role of access to effective contraception

Climate change concerns have largely ignored the importance of universal access to effective contraception, despite the impact of population growth on greenhouse gas emissions, argue experts in the journal BMJ Sexual & Reproductive Health.

Facebook's new Portal makes good video calls but still has issues

A year ago, Facebook surprised a lot of people in tech (and elsewhere) by releasing a video chat device for the home.

Traffic noise affects normal stress reactions in zebra finches and delays offspring growth

Noise pollution is one of the leading environmental health risks in humans. In zebra finches, noise affects their health and the growth of their offspring: Researchers at the Max Planck Institute for Ornithology in Seewiesen found that traffic noise suppresses normal glucocorticoid profiles in the blood, probably to prevent negative effects of chronically elevated levels on the organism. In addition, the young chicks of noise-exposed parents were smaller than chicks from quiet nests.

Method to protect carp from the harmful effects of ammonia

Veterinarians from RUDN University have developed a way to increase the resistance of carp, the most common fish in fish farms, to the harmful effects of ammonia, which is found in almost all water bodies. The researchers found that the amino acid arginine added to fish food can be helpful. The results are published in the journal Aquaculture.

Opening up the black box of heterogeneous catalysis

Researchers from ICIQ's López group present a new method that allows for the rational design of heterogeneous catalysts. After applying principal component analysis and regression (PCA) to the adsorption energies of 71 different C1 and C2 species on 12 close-packed (transition) metal surfaces, the scientists elucidated for the first time an interpretable model in heterogeneous catalysis.

Taming the wild cheese fungus

The flavors of fermented foods are heavily shaped by the fungi that grow on them, but the evolutionary origins of those fungi aren't well understood. Experimental findings published this week in mBio offer microbiologists a new view on how those molds evolve from wild strains into the domesticated ones used in food production.

Spy chip planting said to be easy to do and tough to spot

Much too easy: Planting a two-dollar spy chip on hardware with a technique that can be pulled off on a less than $200 budget? Yet that was the work of a proof in concept investigation by a security researcher and tech-watching sites were discussing the story on Monday.

Scientists aim for new weapons in fight against superbugs

New weapons are needed to fight drug-resistant bacteria, one of the biggest threats to global health. By working on new antibiotics or finding ways to revive existing ones in our medical arsenal, scientists aim to avoid a return to a world where even everyday infections may mean death.

Facebook chief hosts conservative guests amid bias debate

Facebook chief executive Mark Zuckerberg on Monday confirmed reports that he had hosted a series of dinners with right-wing figures, as the social media platform stands accused of stifling conservative voices.

Group behind Facebook's Libra coin announces 21 founding members

The Libra Association, created by Facebook to launch its new cryptocurrency, has announced its 21 founding members after defections by previous supporters including Visa and Mastercard.

China wants centralised digital currency after bitcoin crackdown

As Facebook readies to launch its answer to bitcoin, China is set to introduce its own digital currency—one that could allow the government and the central bank to see what people spend their money on, according to analysts.

1-in-3 young children undernourished or overweight: UNICEF

A third of the world's nearly 700 million children under five years old are undernourished or overweight and face lifelong health problems as a consequence, according to a grim UN assessment of childhood nutrition released Tuesday.

School lunches keep Japan's kids topping nutrition lists

Japan manages a rare feat for a developed country when it comes to feeding its children—high scores for nutrition but very low obesity rates. One major key? School lunches.

High on ease, low on nutrition: instant-noodle diet harms Asian kids

A diet heavy on cheap, modern food like instant noodles that fills bellies but lacks key nutrients has left millions of children unhealthily thin or overweight in southeast Asia, experts say.

58 dead, rescuers in 'day and night' hunt for missing after Japan typhoon

Fresh rain threatened to hamper efforts by tens of thousands of Japanese rescuers searching for survivors after a powerful typhoon that by early Tuesday had killed 58 people.

Harley-Davidson suspends production of electric motorcycle

Harley-Davidson announced on Monday that it had suspended production and delivery of its LiveWire electric motorcycle, which the brand had rolled out as part of a diversification push.

Will 737 MAX crisis take down Boeing CEO?

The crisis over the 737 MAX that has tarnished Boeing's image has finally cost Dennis Muilenburg his title as chairman.

Owl killings spur moral questions about human intervention

As he stood amid the thick old-growth forests in the coastal range of Oregon, Dave Wiens was nervous. Before he trained to shoot his first barred owl, he had never fired a gun.

Four-metre king cobra wrestled from sewer in Thailand

A feisty four-metre (13-foot) king cobra was pulled from a sewer in southern Thailand in an hour-long operation, a rescue foundation said Tuesday, describing the reptile as one of the largest they had ever captured.

Sleep apnea linked to blinding eye disease in people with diabetes

New research from Taiwan shows that severe sleep apnea is a risk factor for developing diabetic macular edema, a complication of diabetes that can cause vision loss or blindness. Diabetic macular edema was also more difficult to treat in patients with severe sleep apnea. While earlier research showed a weak connection between the two conditions, evidence is mounting that sleep apnea exacerbates underlying eye disease. The researchers present their study today at AAO 2019, the 123rd Annual Meeting of the American Academy of Ophthalmology.

Polyamorous families face stigma during pregnancy and birth

Polyamorous families experience marginalization during pregnancy and birth, but with open, nonjudgmental attitudes from health care providers and changes to hospital policies, this can be reduced, found new research in CMAJ (Canadian Medical Association Journal).

CMAJ practice article: E-cigarettes: Five things to know

A practice article about e-cigarettes provides a quick reference on the use of these electronic nicotine delivery systems published in CMAJ (Canadian Medical Association Journal):