Older individuals who are subliminally exposed to positive stereotypes about aging showed improved physical functioning that can last for several weeks. Researchers used a novel intervention method to examine for the first time whether exposure to positive age stereotypes could weaken negative age stereotypes and their effects over time, and lead to healthier outcomes.
As you glance over a menu or peruse the shelves...
When the clocks “fall back” this year on Nov. 2, don’t let gaining an extra hour rob you of...
Vitamin D deficiency increases the risk of poor brain function after sudden cardiac arrest by seven-fold, according to new research. Vitamin D deficiency also led to a higher chance of dying after sudden cardiac arrest.
Viagra could be used as a safe treatment for heart disease, finds new research. A study reveals that long-term daily treatment of Viagra can provide protection for the heart at different stages of heart disease, with few side effects.
DNA has garnered attention for its potential as a programmable material platform that could spawn entire new and revolutionary nanodevices in computer science, microscopy, biology and more. Now scientists have designed the first large DNA crystals with precisely prescribed depths and complex 3D features, which could create revolutionary devices.
Ankylosing spondylitis is a systemic disease that causes inflammation in the spinal joints and was thought to have affected members of the ancient Egyptian royal families. Now, a new study refutes that claim, finding instead a degenerative spinal condition called diffuse idiopathic skeletal hyperostosis in royal Egyptian mummies from the 18th to early 20th Dynasties.
The daily trimming of fingernails and toenails to make them more aesthetically pleasing could be detrimental and potentially lead to serious nail conditions. This is according to researchers who have devised equations to identify the physical laws that govern nail growth, and used them to throw light on the causes of some of the most common nail problems, such as ingrown toe nails, spoon-shaped nails and pincer nails.
Scientists have found hidden signatures in the brains of people in a vegetative state that point to networks that could support consciousness even when a patient appears to be unconscious and unresponsive. The study could help doctors identify patients who are aware despite being unable to communicate.
Sugar-sweetened soda consumption might promote disease independently from its role in obesity, according to researchers who found in a new study that drinking sugary drinks was associated with cell aging.
A study led by psychology researchers has found that people who play action video games such as Call of Duty or Assassin’s Creed seem to learn a new sensorimotor skill more quickly than non-gamers do.
Fruit flies can identify odors from illicit drugs and explosive substances almost as accurately as wine odor, which the insects are naturally attracted to because it smells like their favorite food, fermenting fruit.
Choosing between two good things can be tough. When animals must decide between feeding and mating, it can get even trickier. Now, researchers have shown that male brains– at least in nematodes– will suppress the ability to locate food in order to instead focus on finding a mate.
Using a common laboratory filter paper decorated with gold nanoparticles, researchers have created a unique platform, known as “plasmonic paper,” for detecting and characterizing even trace amounts of chemicals and biologically important molecules— from explosives, chemical warfare agents and environmental pollutants to disease markers.
Each day, plankton rise from deep underwater to the ocean's surface during the night and then return to the depths in daytime. Zoologists describe this movement as Earth’s biggest migration. The stimulus for this mass migration has long puzzled scientists but it may be the sleep hormone melatonin.
Gut microbes in mice and humans have circadian rhythms that are controlled by the biological clock of the host in which they reside. Disruption of the circadian clock in the host alters the rhythms and composition of the microbial community, leading to obesity and metabolic problems.
Patients with Parkinson's disease, cardiovascular disease and cystic fibrosis have something in common: cells in their disease-affected tissues may produce misfolded proteins that are incapable of functioning. Now, scientists have found where the misfolded proteins clump together in a cell, and how the cell can prevent the passage of these defective molecules to its daughter cell.
Scientists have found that an infant’s preference for a person’s face, rather than an object, is associated with lower levels of callous and unemotional behaviors in toddlerhood.
For millennia, malaria has been a major killer of children in Africa and other parts of the world. In doing so, it has been a major force of evolutionary selection on the human genome.
West African chimpanzees will search far and wide to find Alchornea hirtella, a spindly shrub whose straight shoots provide the ideal tools to hunt aggressive army ants in an ingenious fashion. The plant provides the animals with two different types of tool, a thicker shoot for digging and a more slender tool for dipping.
Short-term modest weight gains in healthy, normal weight young adults was associated with more bad cholesterol levels in those who ate muffins cooked using saturated oil. However, individuals in the same study who ate muffins made with polyunsaturated oils had improved blood cholesterol profiles.
More than 100 years since they were first discovered, some of the world's most bizarre fossils have been identified as distant relatives of humans. The fossils belong to 500-million-year-old blind water creatures. Alien-like in appearance, they were filter-feeders shaped like a figure eight. Their strange anatomy has meant that no one has been able to place them accurately on the tree of life, until now.
A new paper posits that the Pleistocene members of the now-extinct family of sthenurine kangaroos were likely bipedal walkers. The scientists make their case based on a rigorous statistical and biomechanical analysis of the bones of sthenurines and other kangaroos past and present.
Our mood can affect how we walk— slump-shouldered if we're sad, bouncing along if we're happy. Now, researchers have shown it works the other way too— making people imitate a happy or sad way of walking actually affects their mood.
Turning street lights off decreases the number of grounded fledglings, according to a study. Thousands of birds are attracted to lights– sometimes referred to as light-pollution– every year worldwide during their first flights from their nests to the open ocean, a phenomenon called “fallout.”
Children who began life in overcrowded orphanages with bleak conditions and minimal human contact show that early childhood neglect is associated with changes in brain structure. New research has found that children who spent their early years in these institutions have thinner brain tissue in cortical areas that correspond to impulse control and attention.
Collapsible wings may be a bird's answer to turbulence, according to a study in which an eagle carried its own “black box” flight recorder on its back.
Alcohol consumption isn't the only thing a breath analysis can reveal. Scientists have been studying its possible use for diagnosing a wide range of conditions in humans— and now in the beloved bottlenose dolphin.
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