The short answer for the general public: it's up to you. The Surgeon General says it's a bad idea for most people who aren't sick because people touch their face more when they're wearing one. Others say it keeps people from spreading germs. Lately, this silly graph has been bouncing around the internet: Let's take some lessons from dietary science and apply them here. Correlation isn't Causation One wag put up a graph that said, instead of Masks and No masks, Bubble Tea and No Bubble Tea. That must be it--let's all drink bubble tea! Fun with Y Axes Note the Y axis is cumulative cases, not cases per million population. Singapore and Hong Kong are city-states with populations of 5.8 million and 7.5 million. Those are small populations as far as countries go, so we'd expected them to have low cumulative numbers of cases. Also note that these are cases, not deaths. Spain and Germany are in almost the same place on the chart, and yet Sp...
Do-it-yourself health. Low-carb, mostly evolutionary.