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Science Based Medicine features blog-style posts offering the latest evidence about medical claims, news about recent scientific discoveries, and commentary on issues of contemporary and perennial interest. Readers can scroll through the latest posts or find those organized by popular topics such as Chiropractic, Energy Medicine, Nutrition, Health Fraud, and even Veterinary Medicine. Second, in the Reference drop-down menu, SBM offers materials on major topics and issues such as Homeopathy, Vaccines & Autism, and Acupuncture. more »

The fierce wildfires that broke out across much of the western United States this summer, spreading smoke across hundreds of miles, continue to pose a serious health hazard to millions. That’s a major health concern because microscopic particles in wildfire smoke, carried by the wind, can penetrate deep into your lungs and travel into your bloodstream. One study linked wildfire smoke exposure to a twofold increase in the rate of asthma and a 40% rise in strokes and heart attacks. But the smoke can get into your house or apartment. So you might want to consider investing in equipment to clean the air inside your home, especially with climate change likely to continue escalating the scope and intensity of the fires. more »

Wearing face masks, particularly surgical masks, is truly effective in reducing the spread of COVID-19 in community settings, finds a new study led by researchers from Yale University, Stanford Medical School, the University of California, Berkeley, and the nonprofit Innovations for Poverty Action (IPA). The study, which was carried out among more than 340,000 adults living in 600 rural communities in Bangladesh, is the first randomized trial to examine the effectiveness of face masks at reducing COVID-19 in a real-world setting, where mask use may be imperfect and inconsistent. more »

The National Institutes of Health has begun a clinical trial to assess the antibody response to an extra dose of an authorized or approved COVID-19 vaccine in people with autoimmune disease who did not respond to an original COVID-19 vaccine regimen. The trial also will investigate whether pausing immunosuppressive therapy for autoimmune disease improves the antibody response to an extra dose of a COVID-19 vaccine in this population. The Phase 2 trial is sponsored and funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of NIH, and is being conducted by the NIAID-funded Autoimmunity Centers of Excellence. more »