Evidence continues to mount that mask mandates were perhaps the worst public-health intervention in modern American history. While concluding that wearing masks “probably makes little or no difference ...

Claims that wearing a face covering contributes to carbon dioxide poisoning have been debunked by scientists. New research shows face masks are unlikely to cause overexposure to CO2, even in patients ...

At the end of last year we took a look at a new device, the ZoneX from French startup Pairfs based in Grenoble. First a bit of science. It has been known since the early 19th century that lactic acid ...

Since May, highly contagious "FLiRT" coronavirus variants – a term for new mutations of Omicron – have been driving a rise in infections and emergency room trips. Virus levels at local wastewater ...

A carbon dioxide (CO2) blood test measures the amount of CO2 in your body. It is typically performed in conjunction with other blood tests to assess for electrolyte imbalances. Levels that are too ...