1. YouTube has been a popular source of information among diverse populations throughout the Covid-19 pandemic (Khatri et al., 2020). In 2020, in response to criticisms that it was amplifying misinformation about the virus (Bruns et al., 2020; Shahsavari et al., 2020), the platform introduced a range of policies and design changes aimed at limiting the spread of Covid-19 medical misinformation. These included a system for amplifying authoritative content in automated video recommendations (Matamoros-Fernandez et al., 2021) and amendments to the Community Guidelines to prohibit content “about COVID-19 that poses a serious risk of egregious harm” (YouTube Help, 2022a, para. 2). The revised guidelines specify that Covid-19 medical misinformation includes any content that contradicts health authorities’ guidance on Covid-19 treatments, prevention, diagnosis, physical distancing, and the existence of Covid-19. Claims about vaccines that “contradict expert consensus,” including claims that vaccines cause death or infertility, or contain devices used to track or identify individuals, and false claims about the effectiveness of vaccines are all explicitly in violation of YouTube’s Covid-19 medical misinformation guidelines (YouTube Help, 2022a, para. 3).

  2. The wear and tear on the body from chronic and lifelong stress can also lead to an increased risk of dying from cancer, Medical College of Georgia researchers report.

  3. Eating cold-water fish and other sources of omega-3 fatty acids may preserve brain health and enhance cognition in middle age, new evidence indicates.

  4. QAnon, a baroque and prophetic US conspiracy theory revolving around a supposed Deep State of Satan-worshipping paedophiles, has proven itself phenomenally resilient to facts and the failure of its various predictions. The wider public became more aware of the theory when many Q followers took part in the storming of Capitol Hill in January 2021, claiming the US election had been stolen. Not even the electoral defeat of Donald Trump, its posited hero, has dampened the theory’s popularity or slowed its spread.

  5. Rugby union has been urged to cut back on competitive matches and stop contact training sessions altogether during the season following a landmark study which found the risk of motor neurone disease among Scottish international players was 15 times higher than the general population.

  6. There is no evidence that the COVID-19 vaccination increases the incidence of Guillain-Barré syndrome, a rare neurological disorder in which the body’s immune system attacks the nerves, according to a Rutgers-led study.

  7. Looking into some of the Japanese Twitter accounts that were crucial in spreading misinformation about the assassination of former Prime Minister Shinzo Abe, it was learned in August that some of the same accounts actively spread other conspiracy theories in the past.

  8. Severe Covid infections can cause immune reactions that damage nerve cells in the brain, causing memory problems and confusion, and potentially raising the risk of long-term health issues, research suggests.

  9. COVID-19 vaccination during pregnancy was linked to a lower risk of neonatal intensive care unit (NICU) admission, stillbirth, and maternal SARS-CoV-2 infection and no additional risk of preterm birth, small for gestational age (SGA), low Apgar score, cesarean delivery, postpartum hemorrhage, or chorioamnionitis, finds a systematic review and meta-analysis published yesterday in JAMA Pediatrics.

  10. A new study published in Personality and Individual Differences suggests that positive emotions can promote better money management practices that can lead to increased net wealth. Existing research tends to show that money leads to happiness,” says the lead author of the paper, Sarah Asebedo of Texas Tech University. “Despite this favored interpretation, there is robust evidence that positive emotions actually support and create the behaviors necessary for people to succeed in their financial life (e.g., earn money, exercise control, stay out of debt, save, etc.). Our research builds on this work by generating evidence that positive emotions also have a causal relationship with wealth creation.”

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