Science

Older adults who sleep short or long experienced greater cognitive decline than those who sleep a moderate amount, even when the effects of early Alzheimer's disease were taken into account, according to a new study.

Older adults who sleep short or long experienced greater cognitive decline than those who sleep a moderate amount, even when the effects of early Alzheimer's disease were taken into account, according to a new study.

Researchers have discovered that people with asthma and chronic obstructive pulmonary disease have a protein in their lungs that leaks a small molecule into their bloodstream that restricts their breathing instead of relaxing their airways. The findings will help clinicians diagnose and determine the severity of chronic lung diseases and make bronchodilators more effective.

Researchers have discovered that people with asthma and chronic obstructive pulmonary disease have a protein in their lungs that leaks a small molecule into their bloodstream that restricts their breathing instead of relaxing their airways. The findings will help clinicians diagnose and determine the severity of chronic lung diseases and make bronchodilators more effective.

Using sophisticated microscopy and computational analysis, researchers have now validated the merit of a water purification technology that uses electricity to remove and inactivate an assortment of waterborne viruses. They said the yet-to-be-implemented water purification strategy could add another level of safety against pathogens that cause gastrointestinal ailments and other infections in humans.

Using sophisticated microscopy and computational analysis, researchers have now validated the merit of a water purification technology that uses electricity to remove and inactivate an assortment of waterborne viruses. They said the yet-to-be-implemented water purification strategy could add another level of safety against pathogens that cause gastrointestinal ailments and other infections in humans.