Author: healthadmin

In an expanding universe, measuring distance becomes more complicated because space is not fixed while light travels through it. Galaxies continue to emit light, but that light can take billions of years to traverse the universe before reaching us. During that journey, the universe continues to expand, increasing the average distance between galaxies (yes, I know galaxies sometimes collide, but we’re talking on average, large scales here). This means that even though the telescope captures light from a distant galaxy, the images do not reveal where that galaxy is currently located. It shows the galaxy that appeared when light began…

Many people expect memory to fade as a normal part of aging. However, some elderly people, known as superagers, have memory abilities that are equal to or even better than those in their 50s and 60s, even into their 80s and 90s. Scientists have spent nearly two decades identifying the biological, neurological, and psychosocial characteristics associated with superagers. But one big question remains unanswered. Are super-agers people who have inherited an unusually low genetic risk for Alzheimer’s disease? “If that’s true, identifying superagers could be as simple as doing genetic testing rather than the comprehensive cognitive assessments we currently use,”…

At the Branxton Community Center in New South Wales’ Hunter Valley last week, local resident Janet Murray was given five minutes to talk about plans for the state’s largest coal mine expansion.Dozens of people gathered before her to share their views on whether the 19-year extension proposed by Hunter Valley Operation (HVO) should be accepted.As a former blast furnace operations supervisor at Newcastle Steelworks until its closure in 1999, Mr Murray has “first-hand experience” of working in an industry facing major change.She understood that the prospect of continued employment was “a very emotional issue in our community and can be…

Commercial sex workers are exposed to harsh social judgments that negatively impact their mental health. New research reveals that having high self-esteem does not protect against the psychological harm caused by this pervasive prejudice. The study, published in the Journal of Health Psychology, highlights the severe impact social rejection has on marginalized groups. Around the world, individuals who exchange sexual services for money face severe discrimination. Society often labels commercial sex workers as criminals, sexual deviants, and carriers of disease. This institutionalized bias occurs in our interactions with the health care system, financial institutions, and the media. Policies driven by…

Behavioral scientists from UNSW Sydney and Griffith University found no evidence that individual climate-friendly choices reduce people’s interest in broader action on climate change. The study, released on July 23, followed around 2,800 Australians over four years as part of the National Climate Action Survey. Participants who recycle, use reusable cups and containers, take public transport, eat greener meals, and cycle to work were no less likely to support broader climate change policies and collective action. The findings challenge the common argument that governments and companies promote small lifestyle changes to distract from more difficult reforms, such as transforming the…

A UCLA Health study in mice found that inflammation during pregnancy can cause lasting autism-like changes in offspring. The researchers also found that many of the resulting brain and behavioral effects could be rapidly ameliorated in adulthood, albeit temporarily, by a single dose of the immunosuppressive drug rapamycin. Previous studies have shown that even mild inflammation during the second trimester can affect offspring development. Reported effects include autism-like behavior, abnormal brain growth, seizures, and hypersensitivity to normal sounds, touch, and other sensory experiences. These effects can continue into adulthood. In a new study published in nature communicationsUCLA scientists found that…

Studies suggest that consuming a diet rich in plant-based compounds known as polyphenols is a promising approach to protecting the brain from age-related decline. Recent comprehensive reviews published in journals nutrients These natural substances provide evidence that they may help delay the onset of neurodegenerative conditions like Alzheimer’s disease. The study focuses on how polyphenols interact with cellular pathways to reduce inflammation and oxidative stress, but the scientists note that more human trials are needed to confirm these benefits. As the world’s population ages, the number of people experiencing dementia and other cognitive impairments continues to rise rapidly. Diseases such…

Prebiotic sodas have grown in popularity in recent years, with new products popping up all the time promising gut health benefits and low-calorie enjoyment. However, new analysis shows that many of these drinks contain relatively less prebiotic fiber and more sugar than their marketing claims. Many products contain nutritional and functional claims that can exaggerate their nutritional value. For example, some labels may claim “no added sugar,” but the product may still contain a total of about 10 grams of sugar from sources such as juice. This has raised concerns that such claims could create a ‘circle of health’,…

A 20-year study of more than 65,000 postmenopausal women found that higher adherence to the Planetary Health Diet was associated with lower risk of overall cardiovascular disease, coronary heart disease, stroke, and heart failure. They found that women whose diets most closely followed the Planetary Health Diet had an approximately 28% lower risk of cardiovascular disease than women in the least compliant group. However, even moderate adherence to the diet was associated with reduced risk. The Planetary Health Diet emphasizes foods such as fruits, vegetables, whole grains, legumes, nuts, and unsaturated fats, and limits foods such as red and processed…

In 2021, the U.S. Food and Drug Administration (FDA) announced Phase I Voluntary Sodium Reduction Goals that encourage manufacturers to lower the amount of sodium in packaged foods by 2024. The target appears to have had minimal impact, according to a study comparing the sodium content of new products introduced before and after the guidance was issued. Our findings suggest that despite voluntary targets issued by the FDA, sodium content in newly introduced products did not decrease in nine processed food categories that account for the majority of U.S. dietary salt intake, and increased in four additional categories. These…