A new trial reveals that weekly injections of the weight-loss drug Wegovy (semaglutide) lowered the risk of death from COVID-19 by about a third and reduced overall mortality by 19%. The study followed more than 17,000 participants with heart disease and obesity, showing that Wegovy decreased the likelihood of death from cardiovascular disease by 15% and other causes by 23%.

A new study has found microplastics in human brains for the first time, raising concerns about the potential health impact. Researchers analyzed samples from autopsies and discovered an accumulation of plastic particles in brain tissue, likely due to exposure through food, water, and air.

A recent study reveals that hearing plays a vital role in coordinating speech movements. Researchers found that when individuals briefly couldn't hear their own speech, their ability to control their jaw and tongue movements declined.

Scientists are investigating the extraordinary longevity of neurons, which can survive for over 90 years, in a new research project. This study aims to uncover the genetic and molecular mechanisms that enable neurons to live so long.

A recent study has mapped how molecules in food interact with gut bacteria, revealing why people respond differently to the same diets. By examining 150 dietary compounds, researchers found that these molecules can reshape gut microbiomes in some individuals, while having little effect in others.

A new study reveals that a high-fat diet alone does not appear to be responsible for changes in brain neurons that regulate appetite and energy balance. Researchers found no immediate effect on neurons in the hypothalamus of mice fed a high-fat, low-sugar diet, suggesting that other nutrients like sugar may play a more significant role in altering brain function.

A new study has discovered that ophthalmic acid, a molecule in the brain, acts like a neurotransmitter to regulate motor function, similar to dopamine. In Parkinson’s mouse models, this molecule improved movement for over 20 hours—far longer than the effects of the current treatment, L-dopa.

A new study reveals that inflammation and immune system activation are closely linked to major depressive disorder (MDD), particularly in those resistant to standard antidepressants. Researchers analyzed gene expression in people with depression, finding increased immune-related gene activity, especially in those with higher inflammation.

Researchers have discovered that geckos use their saccule, a part of the inner ear associated with balance, to detect low-frequency vibrations. This sensory pathway complements their regular hearing and may be present in other reptiles.

A new study explores why magic tricks based solely on sound are rare, despite the many auditory illusions we encounter in everyday life. Researchers suggest that the difficulty lies in how the brain processes visual versus auditory information, with vision being more trusted.

Researchers have developed a molecule called LaKe that mimics the metabolic effects of strenuous exercise and fasting. This molecule increases lactate and ketone levels in the body, providing similar benefits to running 10 kilometers on an empty stomach, without physical exertion or dietary changes.

Healthy adults who contracted COVID-19 had subtle but measurable declines in memory and cognitive performance lasting up to a year. These differences were found through sensitive testing under controlled conditions, though all scores remained within normal ranges, and none of the participants reported lasting cognitive symptoms.