African Americans face higher risks for many diseases. This is partly due to poverty, discrimination and lack of access to care. But there may be something different about the higher rates of Alzheimer’s.
In a study published in Nature Communications, researchers from the Max Planck Institute for the Science of Human History’s Department of Archaeology, together with international partners, present evidence that Middle Palaeolithic tool-users were present in India before and after the Toba super-eruption 74,000 years ago. The findings support arguments that Homo sapiens was present in South Asia pr
The fascinating and highly efficient jumping mechanism in flea beetles is described in a new research article in the open-access journal ZooKeys. Despite having been known since 1929, the explosive jump has not been fully understood. Recently, a team of Chinese and US scientists joined forces to test the existing theories, using micro-computed tomography, 3D reconstructions, high-speed filming and
Researchers at the University of Maryland School of Medicine (UMSOM) found that targeting overactive immune cells in the brain with an experimental drug could limit brain cell loss and reverse cognitive and motor difficulties caused by traumatic brain injury (TBI). The findings, published Monday in the Journal of Neuroscience, suggest a potential new treatment for TBI and possibly other brain inju
New study findings suggest that weight gain after breast cancer is a greater problem than previously thought. The first national survey on weight after breast cancer in Australia, published in BMC Cancer journal, found close to two-thirds (63.7%) of women reported weight gain at an average of nine kilograms after a breast cancer diagnosis, and overall nearly one-in-five women (17%) added more than
According to a new epidemiological study, women in their late 50s and early 60s who consumed at least two servings of walnuts per week had a greater likelihood of healthy aging compared to those who did not eat walnuts. After accounting for various factors that could impact health in older adults, such as education and physical activity, walnuts were the only nut associated with significantly bett
An international team of researchers has found a creature with no mitochondrial DNA, making it the only known animal to exist without the need to breathe oxygen. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study of Henneguya salminicola, a microscopic, parasitic member of the group Myxozoa and its unique physiology.
It sounds like alchemy: take a clump of white dust, squeeze it in a diamond-studded pressure chamber, then blast it with a laser. Open the chamber and find a new microscopic speck of pure diamond inside.
For 20 years, researchers have studied how light rotates around a longitudinal axis parallel to the direction light travels. But could it move in other ways? After two years of research, and thanks to a sabbatical, University of Dayton researchers Andy Chong and Qiwen Zhan became the first to create a new “state of light”—showing it also can rotate around a transverse axis perpendicular to the dir
Neutral atoms and charged ions can be cooled down to extremely low temperatures (i.e., to microkelvins, 1 millionth of a degree above absolute zero) using laser techniques. At these low temperatures, the particles have often been found to behave in accordance with the laws of quantum mechanics.
In a study published in Nature Communications, researchers from the Max Planck Institute for the Science of Human History’s Department of Archaeology, together with international partners, have presented evidence that Middle Palaeolithic tool users were present in India before and after the Toba super-eruption 74,000 years ago. The findings support arguments that Homo sapiens was present in South
Some species of deaf moths can absorb as much as 85 per cent of the incoming sound energy from predatory bats—who use echolocation to detect them. The findings, published in the Journal of the Royal Society Interface today, reveal the moths, who are unable to hear the ultrasonic calls of bats, have evolved this clever defensive strategy to help it survive.
Dem bones do plenty. (DepositPhoto/) For February, we’re focusing on the body parts that shape us, oxygenate us, and power us as we take long walks on the beach. Bony bonafide bones. These skeletal building blocks inspire curiosity and spark fear in different folks—we hope our stories, covering everything from surgeries and supplements to good old-fashioned boning, will only do the first. Once yo
The Sahara desert didn’t always look this dry. (DepositPhotos/) When you think of the Sahara, seafood probably isn’t the first thing that springs to mind. For thousands of years, this massive desert stretching across North Africa has been home to just the scant few animals adapted to life in hot, arid land. But during the Holocene, the Sahara was lush—and full of fish. A study published last week
Vehicles with long-range DF-26 missiles during a military parade in Beijing, China, in September 2015. (Ge jinfh/) China’s long-range missiles play a central role in the country’s military plans . And, in the event of armed conflict between that nation and the US, they’re the weapon the American military worries the most about. Despite their pivotal role in Chinese war-fighting strategy, the serv
A more nuanced billing code could encourage doctors to take a more nuanced approach. (DepositPhoto/) We now know that obesity, a chronic disease that affects almost half of the United States population and contributes to millions of deaths worldwide, isn’t just about how much you weigh . A huge variety of factors , from physical and mental health to genetics and upbringing, all contribute to the
Bringing dehydrated fruit snacks means you won’t have to stress about whether those tasty-looking berries are actually poisonous. (blackboard1965G via Depositphotos/) Snacks are essential for every hiker’s backpack. They keep your energy up, your mind focused, and give you something to do while contemplating the majesty of Mother Nature. But store-bought snacks and bars are expensive, and often c
View this post on Instagram Tiny tadpoles breathe by “bubble-sucking.” This high-speed camera footage reveals the Pokemon-like technique for the first time. Blowing spit bubbles might seem silly or immature, but when you’re a tiny aquatic creature just trying to catch a breath, there’s a good reason for it. Researchers at @uconn have finally cracked the timeline of a tadpole’s breathing pro
Study found that adequate sleep allowed students to cope with discrimination and challenges associated with ethnic or racial bias. It also helps them problem-solve more effectively and seek peer support when faced with hardships.
R esearchers argue that obesity should be considered premature aging. They look at how obesity predisposes people to acquiring the kinds of potentially life-altering or life-threatening diseases normally seen in older individuals: compromised genomes, weakened immune systems, decreased cognition, increased chances of developing type 2 diabetes, Alzheimer’s disease, cardiovascular disease, cancer a
An international study with data from Europe and the USA has found that disrespectful treatment leads to cynical beliefs about human nature. These cynical beliefs, in turn, again lead to
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