Key messageGovernments claimed to be following scientific advice during the pandemic to legitimise decisionsAdvice should be autonomous to ensure that governments do not simply seek advice that aligns with what they want to hearTransparency is also essential to know who gave the advice and what the government did with itThe UK’s advice system was not… Continue reading Role of scientific advice in covid-19 policy
How nature nurtures: Amygdala activity decreases as the result of a one-hour walk in nature
Since living in cities is associated with an increased risk for mental disorders such as anxiety disorders, depression, and schizophrenia, it is essential to understand how exposure to urban and natural environments affects mental health and the brain. It has been shown that the amygdala is more activated during a stress task in urban compared… Continue reading How nature nurtures: Amygdala activity decreases as the result of a one-hour walk in nature
Association of Daily Step Count and Intensity With Incident Dementia in 78 430 Adults Living in the UK
Key PointsQuestion Is there a dose-response association of daily step count and intensity with incidence of all-cause dementia among adults living in the UK?Findings This cohort study of adults assessed with wrist-worn accelerometers found that accruing more steps per day was associated with steady declines in dementia incidence risk, up to 9800 steps per day, beyond which… Continue reading Association of Daily Step Count and Intensity With Incident Dementia in 78 430 Adults Living in the UK
Titanium dioxide particles frequently present in face masks intended for general use require regulatory control
Although titanium dioxide (TiO2) is a suspected human carcinogen when inhaled, fiber-grade TiO2 (nano)particles were demonstrated in synthetic textile fibers of face masks intended for the general public. STEM-EDX analysis on sections of a variety of single use and reusable face masks visualized agglomerated near-spherical TiO2 particles in non-woven fabrics, polyester, polyamide and bi-component fibers. Median sizes… Continue reading Titanium dioxide particles frequently present in face masks intended for general use require regulatory control
High blood pressure may accelerate bone aging
A new study in mice, presented at an American Heart Association meeting, suggests high blood pressure may cause bones to age fasterResearch Highlights:A new study in mice found that hypertension may be linked to significant bone loss.Bone quality in young mice with high blood pressure was similar to the bones of older mice without high… Continue reading High blood pressure may accelerate bone aging
The hidden link between circadian entropy and mental health disorders
The high overlapping nature of various features across multiple mental health disorders suggests the existence of common psychopathology factor(s) (p-factors) that mediate similar phenotypic presentations across distinct but relatable disorders. In this perspective, we argue that circadian rhythm disruption (CRD) is a common underlying p-factor that bridges across mental health disorders within their age and… Continue reading The hidden link between circadian entropy and mental health disorders
Long-lasting geroprotection from brief rapamycin treatment in early adulthood by persistently increased intestinal autophagy
The licensed drug rapamycin has potential to be repurposed for geroprotection. A key challenge is to avoid adverse side effects from continuous dosing. Here we show that geroprotective effects of chronic rapamycin treatment can be obtained with a brief pulse of the drug in early adulthood in female Drosophila and mice. In Drosophila, a brief, early rapamycin treatment… Continue reading Long-lasting geroprotection from brief rapamycin treatment in early adulthood by persistently increased intestinal autophagy
Environmental impassivity: Blunted emotionality undermines concern for the environment
The average American believes in climate change, worries about it, and supports related policy, but there are still considerable differences—across individuals and with political ideology—that limit the ability to foster change. Researchers and practitioners often increase concern and action for others through feelings of empathy, which also increases pro-environmentalism. However, some people appear less emotionally… Continue reading Environmental impassivity: Blunted emotionality undermines concern for the environment
I share, therefore I know? Sharing online content – even without reading it – inflates subjective knowledge
Billions of people across the globe use social media to acquire and share information. A large and growing body of research examines how consuming online content affects what people know. The present research investigates a complementary, yet previously unstudied question: how might sharing online content affect what people think they know? Sharing signals expertise, and people frequently… Continue reading I share, therefore I know? Sharing online content – even without reading it – inflates subjective knowledge
2 Medical News 