There's growing evidence that a lack of deep sleep increases the risk of Alzheimer's disease. Scientists say that's because during deep sleep, the brain removes toxins associated with Alzheimer's.
Dr. Glenn Hurst says hospitalizations are growing in part because of a nursing home "bottleneck." Many people rehabilitate at nursing homes after leaving the hospital.
NPR's Ari Shapiro talks with Dr. Helene Gayle, one of the co-chairs of the National Academies' framework for vaccine distribution, about how the coronavirus vaccine can be distributed equitably.
NPR's Mary Louise Kelly talks with Dr. Tal Zaks, chief medical officer at Moderna, about its coronavirus vaccine, which is said to be nearly 95% effective, according to clinical trial data.
As coronavirus cases surge across the United States, a second vaccine candidate is said to show great promise. Experts say the first vaccines could become available as early as late December.
NPR's Mary Louise Kelly talks with Moncef Slaoui, chief scientific adviser for Operation Warp Speed, about Moderna's coronavirus vaccine, which is said to be nearly 95% effective.