Health & Fitness

An optical fiber as thin as a strand of hair holds promise for use in minimally invasive deep-tissue studies of patients' brains that show the effects Alzheimer's disease and other brain disorders. The challenge is efficiently increasing image resolution at the subcellular level, because loss of information is inevitable from light scrambling.

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Researchers have unraveled how bacteria adhere to host cells and thus taken the first step towards developing a new class of antibiotics.

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Researchers are studying how a combination of genetics and brain MRIs may be used to predict the chances of developing Alzheimer's disease in the future.

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American Heart Association's checklist to measure cardiovascular health is updated, now called Life's Essential 8™, adding healthy sleep as essential for optimal cardiovascular health. Other health and lifestyle factors in the checklist, which were part of the previous, 7-item scoring tool, are nicotine exposure, physical activity, diet, weight, blood glucose, cholesterol and blood pressure. The new sleep metric suggests 7-9 hours of sleep daily for optimal cardiovascular health for adults, and more for children depending on age.

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Researchers found the U.S. population is well below optimal levels of cardiovascular health after applying the Life's Essential 8™ cardiovascular health scoring, the American Heart Association's updated metrics to measure heart and brain health. Life's Essential 8™ scoring was calculated using data from more than 23,400 adults and children from national health surveys from 2013-2018. Results show 80% of people in the U.S. have below-optimal cardiovascular health, and scores differed significantly according to age, gender, race/ethnicity, family income and depression status.

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There is considerable variation in the management of mantle cell lymphoma across different clinical settings, and some strategies do not always conform with what might be expected, according to a recent analysis.

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The current system of chemical risk assessment is inadequate and underestimates levels of flame retardants and other pollutants needed to cause harmful health effects, according to a recent analysis.

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