Researchers have suggested that people with compromised immune systems should avoid re-using face masks due to germ growth. The finding was made as part of a Japanese study into face mask hygiene. In ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

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We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Advice, staff picks, mythbusting, and more. Let us help you. Published January 20 ...