Archives for November 2021

The Delta variant of the SARS-CoV-2 virus is responsible for most cases of coronavirus infections worldwide, scientists say. The COVID-19 vaccines work well against the variant so far. Fully vaccinated people who get infected rarely require hospital stays or die from the disease, medical experts say. But scientists continue to watch Delta closely for changes. The Delta … [Read more...] about Scientists Watching Delta Variant for Changes

Scientists have long said getting a good night's sleep is important to your health. The U.S. National Institute of Health says lack of sleep may even increase the risk of impaired brain activity, or cognitive decline, and Alzheimer’s disease. Now, an American team of scientists reports that too much sleep might be similarly linked to such conditions. Researchers at … [Read more...] about Study Suggests Link Between Long Sleep Times, Cognitive Loss

Pfizer said Friday that its experimental antiviral pill for COVID-19 cut hospitalization and death rates by nearly 90 percent in high-risk adults. The American drug-maker said a group of independent scientists observing the study advised halting it early based on the strength of its results. Pfizer’s study was stopped when 774 adults had been treated for 28 days. Among … [Read more...] about Pfizer Says Its COVID Pill 90 Percent Effective