Photoplethysmography (PPG) is a simple optical technique used to detect volumetric changes in peripheral blood circulation. It’s used in smart watches, for example, to monitor pulse […]
As new COVID-19 variants begin to throw vaccine efficacy in question, two leading scientists are calling for health agencies to invest in the development of vaccines […]
Fetal exposure to antibiotics in mid to late pregnancy may be linked to a heightened risk of childhood asthma, suggests research published online in the Archives […]
Cheap herbal cigarettes and bidis—a blend of herbs rolled in tendu leaves—are widely available online and often marketed as a safer, healthier alternative to traditional cigarettes, […]