Author: healthadmin

A comprehensive review of neuroimaging studies suggests that problematic smartphone use is associated with distinct structural and functional changes in the brain. These changes primarily involve neural circuits responsible for reward processing, executive control, and emotional regulation. This analysis shows that the powerful motivators of smartphones may be due to how these devices tap into the brain’s social cognitive networks and reinforce habits through digital social feedback and avoidance of social exclusion. These findings were published in the journal Advances in neuropsychopharmacology and biological psychiatry. The use of smartphones is pervasive around the world and integrated into nearly every aspect…

Breast cancer is the most commonly diagnosed cancer in women worldwide. According to the World Health Organization, about 2.3 million women will be diagnosed with the disease in 2022, and about 670,000 will die from the disease. Although treatments have improved in recent years, some forms of breast cancer are particularly aggressive and difficult to manage. One of the biggest challenges doctors face is that there is no reliable way to predict how these rapidly growing cancers will progress. A new research initiative called Biomarker Research, which integrates data from glycoimmune signatures and clinical evidence in breast cancer, is working…

More than a quarter of people with type 2 diabetes take GLP-1 receptor agonists, but common diabetes drugs may be less effective for people with certain genetic mutations, according to a new study by Stanford Medicine scientists and their collaborators. This genetic mutation, carried by about 10% of the general population, causes a surprising and still mysterious phenomenon that researchers call GLP-1 resistance. This phenomenon results in high levels of the hormone GLP-1 (glucagon-like peptide-1), which helps regulate blood sugar, but with low biological efficacy. It’s unclear whether the variant will affect weight loss from drugs such as Ozempic and…

The virus is so effective at entering human cells, thanks in large part to the special proteins that coat its outer surface. These proteins are important targets for vaccine development. To study these, scientists usually create a laboratory version to see how the immune system responds. However, these simplified versions often omit important sections that are normally located within the outer membrane of the virus. As a result, antibodies don’t always behave the same way they would during an actual infection, making it difficult to understand how antibodies actually recognize and stop the virus. Scripps Research researchers, in collaboration with…

Discover the alarming health risks from climate change including heatwaves, wildfire smoke, air pollution, and disease spread in urban areas. Explore mitigation strategies for sustainability.

Every person has a unique pattern of breathing through their nose, which is stable over time and acts like a biological signature. By tracking how individuals inhale and exhale over a 24-hour period, new research has demonstrated that these unique breathing patterns can identify people with near-perfect accuracy, while also predicting an individual’s levels of anxiety, depression, and weight. The study was published in the journal Current Biology. Breathing frequently seems like an automatic and simple physical process. Many people only become aware of their breathing when they are out of breath or after intense exercise. However, the act of…

The first published study of Tinshemet Cave is changing the way scientists understand the relationship between Neanderthals and Homo sapiens. Evidence from this site indicates that these groups did not simply live together during the Middle Paleolithic period of the Middle Levant. They interacted directly, sharing tools, lifestyles, and even burial customs. These interactions seem to have fostered cultural growth, more complex social behavior, and innovations such as the symbolic use of ocher for formal burials and decoration. The findings point out that the Levant served as a major crossroads in human history, and that human interaction, rather than isolation,…

New research published in evolutionary human science This provides evidence that when the human body is subjected to extreme physical stress, it tends to prioritize immune defenses over other fundamental biological functions such as reproduction and tissue repair. These findings suggest that our evolutionary biology has programmed us to allocate limited energy to immediate survival needs during periods of extreme fatigue. This research will help scientists better understand the deep roots of human adaptability and energy management. Scientists conducted this study to test a core idea in biology known as life history theory. This theory proposes that all living organisms…

People in three states who live near large livestock operations have higher rates of cancer, a new analysis finds. The study, published in the journal Environment Research, focused on California, Iowa, and Texas because of the availability of cancer incidence data, the number of feeding operations in those states, and the variety of animals kept in feedlots. While the results are alarming, the study authors note that they do not prove that concentrated animal feeding operations (CAFOs) cause cancer. Meanwhile, industry representatives dispute that finding, pointing to other studies showing lower rates of many cancers near facilities. Researchers at Yale…

An international team of astronomers has released one of the clearest measurements yet of how fast the nearby universe is expanding. Far from solving long-standing problems, the new findings make them even more difficult to ignore. The collaboration includes John Blakeslee of the NSF NOIRLab, which is funded by the National Science Foundation, and incorporates data from multiple NOIRLab telescopes. Scientists have long relied on two main strategies to determine the rate of expansion of the universe. One approach focuses on the nearby universe, measuring the distances to stars and galaxies to calculate how fast everything is moving away. The…