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ScienceDaily: Top Health News |
| Those earrings are so last year – but the reason you're wearing them is ancient Posted: 22 Sep 2021 11:33 AM PDT Shell beads found in a cave in Morocco are at least 142,000 years old. The archaeologists who found them say they're the earliest known evidence of a widespread form of human communication. |
| New research 'sniffs out' how associative memories are formed Posted: 22 Sep 2021 10:30 AM PDT Has the scent of freshly baked chocolate chip cookies ever taken you back to afternoons at your grandmother's house? Has an old song ever brought back memories of a first date? The ability to remember relationships between unrelated items (an odor and a location, a song and an event) is known as associative memory. |
| 'Ultra-potent' antibody against SARS-CoV-2 variants isolated Posted: 22 Sep 2021 09:19 AM PDT Researchers have discovered an 'ultra-potent' monoclonal antibody against multiple variants of SARS-CoV-2, the virus responsible for COVID-19, including the delta variant. |
| Poorly circulated room air raises potential exposure to contaminants by up to six times Posted: 22 Sep 2021 09:19 AM PDT Having good room ventilation to dilute and disperse indoor air pollutants has long been recognized, and with the COVID-19 pandemic its importance has become all the more heightened. But new experiments show that certain circumstances will result in poor mixing of room air, meaning airborne contaminants may not be effectively dispersed and removed by building level ventilation. |
| Strength training can burn fat too, myth-busting study finds Posted: 22 Sep 2021 09:19 AM PDT A new systematic review and meta-analysis shows we can lose around 1.4 per cent of our entire body fat through strength training alone, which is similar to how much we might lose through cardio or aerobics. |
| 'Second-hand' psychological stress can lead to depression in mice, finds study Posted: 22 Sep 2021 09:18 AM PDT Few studies have explored the effect of psychological stressors on behavior, and neurogenesis, in the context of depression. With the elucidation of a vicarious social defeat stress mouse model, scientists have successfully endeavored in connecting the dots between psychological stress and depression. |
| Genetic regulation of blood cells: Proximity of a gene to a genetic change plays an important role Posted: 22 Sep 2021 09:18 AM PDT Researchers have gained significant new insight into the genetic regulation of blood cells. They achieved this by analyzing a dataset that included more than 31,000 study participants, to date the largest dataset of its kind. |
| Human learning can be duplicated in solid matter Posted: 22 Sep 2021 09:18 AM PDT Researchers have found that learning -- a universal feature of intelligence in living beings -- can be mimicked in synthetic matter, a discovery that in turn could inspire new algorithms for artificial intelligence (AI). |
| Global cancer risk from burning organic matter comes from unregulated chemicals Posted: 22 Sep 2021 09:17 AM PDT Scientists have found that benzo(a)pyrene, traditionally measured to gauge risk of developing cancer from exposure to polycyclic aromatic hydrocarbons (PAHs), is a poor proxy for this type of cancer risk. |
| Intermittent fasting can help manage metabolic disease Posted: 22 Sep 2021 06:09 AM PDT Eating your daily calories within a consistent window of 8-10 hours is a powerful strategy to prevent and manage chronic diseases such as diabetes and heart disease, according to a new article. |
| Children’s dislike of cauliflower, broccoli could be written in their microbiome Posted: 22 Sep 2021 06:09 AM PDT Many children, as well as adults, dislike Brassica vegetables, such as broccoli, cauliflower, cabbage and Brussels sprouts. In the mouth, enzymes from these vegetables and from bacteria in saliva can produce unpleasant, sulfurous odors. Now, researchers have found that levels of these volatile compounds are similar in parent-child pairs, suggesting shared oral microbiomes. They also found that high levels cause children to dislike the vegetables. |
| Sonic hedgehog protein pathway stimulation could help Parkinson's patients Posted: 22 Sep 2021 06:08 AM PDT Levodopa, or L-dopa, is considered the most effective treatment for Parkinson's disease today. After a few years of treatment, however, almost all patients develop a debilitating side-effect called L-dopa induced dyskinesia, or LID, which causes involuntary movements in the limbs, face, and torso. Deep brain stimulation can alleviate LID, but the procedure is highly invasive and not all patients are eligible. |
| Infants have more microplastics in their feces than adults Posted: 22 Sep 2021 06:08 AM PDT Microplastics -- tiny plastic pieces less than 5 mm in size -- are everywhere, from indoor dust to food to bottled water. So it's not surprising that scientists have detected these particles in the feces of people and pets. Now, in a small pilot study, researchers have discovered that infants have higher amounts of one type of microplastic in their stool than adults. Health effects, if any, are uncertain. |
| Predicting a riot: Social inequality leads to vandalism in experiments Posted: 21 Sep 2021 04:57 PM PDT Social inequality can incite collective violence in an experimental setting, finds a new study. |
| Sticking to low-fat dairy may not be the only heart healthy option, study shows Posted: 21 Sep 2021 11:01 AM PDT New research amongst the world's biggest consumers of dairy foods has shown that those with higher intakes of dairy fat - measured by levels of fatty acids in the blood - had a lower risk of cardiovascular disease compared to those with low intakes. Higher intakes of dairy fat were not associated with an increased risk of death. |
| New guidelines to improve reporting standards of studies that investigate causal mechanisms Posted: 21 Sep 2021 09:51 AM PDT A new guideline has been developed to help scientists publish their research accurately and transparently. The AGReMA Statement (A Guideline for Reporting Mediation Analyses) provides recommendations for researchers who want to describe mediation analysis in their paper. Mediation analysis is primarily used to understand causation, ie how an intervention works or why it does not. |
| Pioneering software can grow and treat virtual tumors using AI designed nanoparticles Posted: 21 Sep 2021 09:51 AM PDT The EVONANO platform allows scientists to grow virtual tumors and use artificial intelligence to automatically optimize the design of nanoparticles to treat them. The ability to grow and treat virtual tumors is an important step towards developing new therapies for cancer. Importantly, scientists can use virtual tumors to optimize design of nanoparticle-based drugs before they are tested in the laboratory or patients. |
| A genetic brain disease reversed after birth Posted: 21 Sep 2021 07:02 AM PDT Researchers report that Kleefstra syndrome, a genetic disorder that leads to intellectual disability, can be reversed after birth in a mouse model of the disease. The series of experiments showed that postnatal treatment resulted in improved symptoms, both in the brain and in behavior. |
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