A next-generation nasal vaccine for COVID-19 appears to do what injectable vaccines can’t — actually stop the spread of the virus from person to person. Hamsters that received the nasal vaccine didn’t pass the virus on to others if they became infected, breaking the cycle of transmission, researchers reported July 31 in the journal Science…  read on >  read on >

Celebrity suicides seem to be contagious, prompting everyday folks to consider the same, a new study suggests. The 2014 suicide death of comedian Robin Williams caused a thousand-fold increase in the risk of suicidal thoughts, reflected in a spike in calls to what was then the equivalent of the current 988 Suicide and Crisis Lifeline,…  read on >  read on >

The wildfires thats are increasing with climate change could harm the future brain health of humanity, a new study suggests. Wildfire smoke appears to increase people’s risk of a dementia diagnosis even more than other types of air pollution, researchers reported this week at the Alzheimer’s Association annual meeting in Philadelphia. The risk of dementia…  read on >  read on >

Loneliness has been a major concern in America, particularly in the wake of the social isolation imposed by the COVID-19 pandemic. But friendships are not in decline in the United States, a new study has found. An American adult has an average of four to five friends, similar to numbers reported in previous research from…  read on >  read on >

Losing someone close to you can make you age faster, a new study finds. People who lost a parent, partner, sibling or child showed signs of older biological age compared with those who hadn’t experienced such a loss, researchers reported July 29 in the journal JAMA Network Open. “Our study shows strong links between losing…  read on >  read on >