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A collection of 2592 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.

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

Is it autism? The line is getting increasingly blurry

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

Scorpion toxin that targets 'wasabi receptor' may help solve mystery of chronic pain

The scientists isolated the toxin, a short protein (or peptide) that they dubbed the "wasabi receptor toxin" (WaTx), from the venom of the Australian Black Rock scorpion.

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.

Optic nerve stimulation to aid the blind

"We believe that intraneural stimulation can be a valuable solution for several neuroprosthetic devices for sensory and motor function restoration.

New molecule could help improve heart attack recovery

"Cardiologists say that when a heart attack occurs, time is muscle," said Robert Gourdie, director of the Fralin Biomedical Research Institute at VTC Center for Heart and Reparative Medicine Research. Without oxygen supplied by blood flow, heart cells die -- fast. But while a heart attack may only reduce blood

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.

Shedding light on how the human eye perceives brightness

The findings could contribute to more effective therapies for complications that relate to the eye.

Here's how early humans evaded immunodeficiency viruses: CryoEM reveals structural effect of mutation that made humans, but not apes, immune to SIV

Luckily, as humans evolved from these early primates, we picked up a mutation that made us immune from SIV -- at least until the early 20th century, when the virus evolved to get around our defenses, giving rise to human immunodeficiency virus (HIV) and an AIDS pandemic that today affects