The brains of US teens have physically changed during the Covid-19 pandemic, aging faster than normal, a new study says. About 150 Tibetan exiles held up blank pieces of paper as they rallied in India’s capital on Friday to express solidarity with people in China protesting its ‘zero COVID’ policy.

Former NBA star Jeremy Lin, who plays for a Chinese team, was fined 10,000 yuan ($1,400) for criticizing quarantine facilities, China’s professional league and a news report said Friday, as the government tries to stop protests against anti-virus controls that are among the world’s most stringent.Friday’s roundup covers covid stress on teen brains, cannabis, viral outbreaks, vaccine data, overdoses, health disparities, and more.Health news and commentary from around the Web gathered by MedPage Today staff. Psychologists and psychiatrists have sometimes struggled to keep up with the multiplying mental health challenges posed by the pandemic and other recent events, but through studies and interventions, Vanderbilt faculty members are providing new insights into the crisis—as well as the best evidence-based solutions for overcoming it.

Stress accelerates aging of the immune system, increasing risk of cancer and heart disease: study

Social stress, such as that resulting from traumatizing events, work anxiety, everyday worries and discrimination, can accelerate aging of the immune system, according to a new study that suggests this may potentially increase one’s risk of cancer, cardiovascular disease and illness from infections, including COVID-19.People who had COVID-19 are at higher risk for a host of brain injuries a year later compared with people who were never infected by the coronavirus, U.S. researchers report.A new study says that cognitive impairment due to long COVID is the equivalent of aging 20 years or losing 10 IQ points.A new study suggests age-related memory loss could be reversed with a 20-minute non-invasive treatment that involves sending electrical signals into the brain.

A new global study now confirms the link between a temporary increase in the menstrual cycles of some individuals as a result of the COVID-19 vaccine. A boy has died after being infected by a rare brain-eating amoeba, which officials believe he may have been exposed to at Lake Mead, the Southern Nevada Health District announced Wednesday.A new Western University-led study suggests that patients may experience short- and long-term cognitive impairments following COVID-19 infection that can be similar to those caused by sleep deprivation.

Even the littlest children can experience long COVID, according to a large study, one of the first of its kind to include infants and toddlers.German Chancellor Olaf Scholz’s Cabinet approved legislation Wednesday that ensures basic protective measures against the coronavirus pandemic are continued during the fall and winter when more virus cases are expected.The U.S. Centers for Disease Control and Prevention says the nation should move away from restrictive measures such as quarantines and social distancing and focus on reducing severe disease from COVID-19.China will persist with its COVID-19 policies to guard against new coronavirus strains and the risks they bring, the official newspaper of the Communist Party warned in a commentary for the third straight day, crushing hopes of any near-term easing.

Deaths are declining, but the pandemic isn’t over yet, experts warn

While the head of the World Health Organization says the end of the COVID-19 pandemic is “in sight,” some Canadian experts warn it would be premature to declare the global health crisis over.The risk of developing a blood clot remained elevated almost a year after a COVID-19 infection, according to a new U.K. study that looked at the health records of 48 million unvaccinated adults from 2020.As the third winter of the coronavirus pandemic looms in the northern hemisphere, scientists are warning weary governments and populations alike to brace for more waves of COVID-19.A new study has found that more than half of people infected with the Omicron variant of COVID-19 were unaware they had it. Undiagnosed infections could be the reason why the variant spread so rapidly, according to researchers.Researchers are calling for vigilance in a new study that outlines an obscure family of viruses that causes Ebola-like symptoms in certain monkeys, warning that one of these viruses could soon make the jump to humans.China’s largest city of Shanghai is ordering mass testing Friday of all 1.3 million residents of its downtown Yangpu district and confining them to their homes at least until results are known.

Cyprus on Wednesday lifted the obligatory use of face masks in all indoor areas after the island nation’s top health official said epidemiological data amid the coronavirus pandemic have ‘significantly improved.’. The Chinese metropolis of Wuhan has shut down a district of almost a million people after detecting four asymptomatic COVID cases, as the original epicenter of the pandemic takes no chances in preventing another outbreak under China’s stringent zero-COVID policy.Nearly 20 million lives were saved by COVID-19 vaccines during their first year, but even more deaths could have been prevented if international targets for the shots had been reached, researchers reported Thursday.A diagnosis of dementia more than doubles the risk of suicide in the first three months after a patient is told the news, a recent study has found.

A study of 1.6 million U.S. patients has found that COVID-19 vaccines and boosters lead to low rates of severe illness and death.As children across the country prepare to go back to school, Canada’s top doctor Dr. Theresa Tam advises parents on how to continue to protect their children against COVID-19.U.S. President Joe Biden’s suggestion the COVID-19 pandemic is ‘over’ prompted White House officials to quickly clarify the U.S. government still designates COVID-19 a Public Health Emergency, despite the return to relative normalcy.A new study has found an increased risk of certain long COVID-19 symptoms up to two years after an original infection.The German government on Wednesday presented its plans for new coronavirus measures for the coming fall and winter as it expects virus cases to go up again during the colder season.Almost one in five Canadians say they tested positive for COVID-19 before April 2022, according to a national survey by Statistics Canada.