Researchers have developed an implant that allowed a man with severe paralysis to “speak” again by translating his brain signals into text. The achievement is the latest step in “brain-computer interface” (BCI) research. Scientists have been studying BCI technology for years, with the aim of one day giving people with paralysis or limb amputations greater…  read on >  read on >

An active mind in old age may delay Alzheimer’s disease by up to five years, a new study suggests. Activities like reading, writing letters, playing cards or doing puzzles may prolong brain health even for those in their 80s, researchers say. “The key element is that you’re processing information,” said lead researcher Robert Wilson, a…  read on >  read on >

People who’ve been fully vaccinated against COVID-19 have a much stronger immune system response against the new coronavirus than those who’ve previously been infected, according to a new study. “Vaccinated individuals had the highest antibody levels, nearly three times higher than that of convalescent individuals recovering from symptomatic COVID-19,” an Israeli team reported. What’s more,…  read on >  read on >

Extreme heat strikes poor and minority neighborhoods in U.S. cities harder than those that are wealthier and mainly white, a new study finds. “The distribution of excess urban heat varies within cities, and as a result, communities do not share a city’s extreme heat burden equally,” said study co-author Jennifer Burney. She’s chair of global…  read on >  read on >

Here’s some reassuring news for parents: Most heart problems in children with a rare inflammatory condition triggered by COVID-19 infection resolve within a few months, a new study finds. Multisystem inflammatory syndrome in children (MIS-C) causes inflammation throughout the body, and many patients develop a range of non-respiratory symptoms such as abdominal pain, skin rashes,…  read on >  read on >

More than half of students surveyed on a college campus in the heart of America’s meat-producing belt have tried a plant-based alternative. “Among the 1,400 students surveyed, we found about 55% had tried a plant-based alternative to meat,” said lead author Elizabeth Davitt of the College of Human Sciences at Iowa State University. “Individuals who…  read on >  read on >

As many as two of every five Americans who’ve died from COVID-19 were suffering from diabetes, making the chronic disease one of the highest-risk conditions during the pandemic, an expert says. About 40% of deaths from COVID-19 in the United States were among diabetics, a “really quite sobering” statistic that should prompt people with the…  read on >  read on >