Cancer incidence trends in 2021 largely returned to what they were before the Covid-19 pandemic, according to a study by NIH researchers. However, there was little evidence of a rebound in incidence that would account for the decline in diagnoses in 2020, when screening and other medical care was disrupted. One exception was breast cancer, where the researchers saw an uptick in diagnoses of advanced-stage disease in 2021.

Adults who use the prescription drug metformin to treat their type 2 diabetes have a lower risk of developing Long Covid or dying after a Covid-19 infection than people with diabetes who take other anti-diabetes medications, according to a large NIH-supported study.

A small NIH-funded feasibility study found that an implanted device regulated by the body’s brain activity could improve treatment for the symptoms of Parkinson’s disease (PD) in certain people with the disorder. This type of treatment, called adaptive deep brain stimulation (aDBS), is an improvement on a technique that has been used for PD and other brain disorders for many years. The study found aDBS was markedly more effective at controlling PD symptoms than conventional DBS treatments.