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A collection of 697 articles

Wearable sensors detect what's in your sweat: New easy-to-make sensors can provide real-time measurements of sweat rate and electrolytes and metabolites in perspiration

They hope that one day, monitoring perspiration could bypass the need for more invasive procedures like blood draws, and provide real-time updates on health problems such as dehydration or fatigue.

Type of brain cell involved in stuttering identified: Discovery could lead to targets for new therapies

The loss of astrocytes, a supporting cell in the brain, was most prominent in the corpus callosum, a part of the brain that bridges the two hemispheres.

Scratching the surface of how your brain senses an itch: Set of neurons in spinal cord help transmit a light-touch signal from skin to brain

Salk researchers have discovered how neurons in the spinal cord help transmit such itch signals to the brain.

Near-Earth asteroid 2006 QV89 not a threat for next century: Critical observation made on Maunakea during first night of return to operations

Observations of the near-Earth asteroid 2006 QV89 made on August 11 with the Canada-France-Hawaii Telescope (CFHT) have ruled out any potential future impact threat to Earth by this asteroid for the next century. 2006 QV89 was discovered on August 29, 2006, with a telescope in Arizona, and observations were only

Hurricanes drive the evolution of more aggressive spiders

Raging winds can demolish trees, defoliate entire canopies and scatter debris across forest floors, radically altering the habitats and reshaping the selective pressures on many organisms, suggests a new study published today in the journal Nature Ecology Evolution. "It is tremendously important to understand the environmental impacts of these 'black

Biochemists discover new insights into what may go awry in brains of Alzheimer's patients

Scientists have known for years that amyloid fibrils -- harmful, elongated, water-tight rope-like structures -- form in the brains of people with Alzheimer's, and likely hold important clues to the disease. UCLA Professor David Eisenberg and an international team of chemists and molecular biologists reported in the journal Nature in

Microplastic drifting down with the snow: In the Alps and the Arctic, experts confirm the presence of plastic in snow

The fact that our oceans are full of plastic litter has by now become common knowledge: year after year, several million tonnes of plastic litter find their way into rivers, coastal waters, and even the Arctic deep sea. Thanks to the motion of waves, and even more to UV radiation

America's packaged food supply is ultra-processed: Americans are overexposed to products that are high in calories, saturated fat, sugar and salt

Since about 80% of Americans' total calorie consumption comes from store-bought foods and beverages (packaged and unpackaged), the food and beverage supply plays a central role in the development of chronic disease including obesity and cardiovascular disease. The study was published today, July 24, in the journal Nutrients. It aims

Heat shield just 10 atoms thick to protect electronic devices: Atomically thin heat shields could be up to 50,000 times thinner than current insulating materials in cell phones and laptops

To guard against such ills, engineers often insert glass, plastic or even layers of air as insulation to prevent heat-generating components like microprocessors from causing damage or discomforting users. Now, Stanford researchers have shown that a few layers of atomically thin materials, stacked like sheets of paper atop hot spots,

Insomnia tied to higher risk of heart disease and stroke

Previous observational studies have found an association between insomnia, which affects up to 30% of the general population, and an increased risk of developing heart disease and stroke.

Jurassic world of volcanoes found in central Australia

The Cooper-Eromanga Basins in the north-eastern corner of South Australia and south-western corner of Queensland is Australia's largest onshore oil and gas producing region of Australia.

Australian men's life expectancy tops other men's

The study introduces a new way of measuring life expectancy, accounting for the historical mortality conditions that today's older generations lived through.

Rising summer heat could soon endanger travelers on annual Muslim pilgrimage

Hajj, or Muslim Pilgrimage, is one of the five pillars of the Muslim faith.It is an annual pilgrimage to Mecca, Saudi Arabia, that involves living in the hot weather conditions of Saudi Arabia.

Why Are We as Lonely and Depressed as Never Before? 6 Science-Backed Reasons

People seem lonely and depressed even more so than in past times.