Swimming in indoor or outdoor pools is a healthy form of exercise and recreation for many people. However, studies have linked compounds that arise from chlorine disinfection of the pools to respiratory problems, including asthma, in avid swimmers. Now, researchers reporting in ACS’ Environmental Science & Technology have found that using a complementary form of…
Messenger RNA (mRNA) vaccines to prevent COVID-19 have made headlines around the world recently, but scientists have also been working on mRNA vaccines to treat or prevent other diseases, including some forms of cancer. Now, researchers reporting in ACS’ Nano Letters have developed a hydrogel that, when injected into mice with melanoma, slowly released RNA…
A technology executive in California has apologized for hosting a conference in Culver City after which two dozen attendees and staff members at the event tested positive for the coronavirus. The executive, Peter H. Diamandis, was among those who contracted the coronavirus. He hosted the conference — an annual summit for a paid-membership group called…
“And I also thought it is important to have people of different ages and races represented,” added Audrey, who, like her brother, is Asian. (Their mother, Rachel, a nurse researcher who volunteered for a vaccine trial, asked that their last names be withheld for privacy reasons.) Overall, the teen trials may be less diverse, because…
“The ZIP code data not only provides a map of where New Yorkers are being vaccinated, but also a road map to our Covid response,” Dr. Easterling said. Also on Tuesday, Gov. Andrew M. Cuomo released data that showed white people were being vaccinated at a higher rate than expected based on their eligible population…
The award was particularly controversial because Dr. Chazov, a member of the Soviet Communist Party’s Central Committee, was the personal physician to Kremlin leaders and had, a decade earlier, spoken out against the only other Soviet recipient of the Nobel Peace Prize, Andrei D. Sakharov, the human rights activist who as a physicist had been…
Other factors that may increase bruxism are poor sleep hygiene and bad posture. If you are a light or poor sleeper, you spend more time in non-REM sleep, which is when people naturally brux. This might be caused by stress, but also consuming caffeine or sleeping with your phone. And we tend to take our…
As the coronavirus continues to evolve, the scientific and public health focus has been on new variants in which a few mutations make the virus more infectious, or even, it may be, more deadly. These changes in the virus are all what scientists call point mutations, the substitution of one tiny bit of genetic code…
I live in a city that offers Covid vaccines to volunteers who have worked 15 hours at a vaccination site. Not surprisingly, the demand for volunteer slots far exceeds supply. I got my first shot last week. I have more volunteer shifts scheduled for the next few weeks. Should I relinquish those shifts to others,…
Covid-19 arrived in Cambodia a year ago, on Jan. 23, when a Chinese national flew in from Wuhan, the city where the illness was first detected, and soon fell sick with a fever. A P.C.R. test to detect the genetic material of SARS-CoV-2, the coronavirus that causes Covid-19, came back positive. With that news, the…