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Child sacrifices at famed Maya site were all boys, many closely related

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Child sacrifices at famed Maya site were all boys, many closely related

https://www.sciencenews.org/article/child-sacrifices-maya-site-boys-twins

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In a head-to-head comparison of masks worn by people with active COVID-19, the inexpensive “duckbill” N95 came out on top, stopping 98% of COVID-19 particles in the breath of infected people from escaping into the air.

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In a head-to-head comparison of masks worn by people with active COVID-19, the inexpensive “duckbill” N95 came out on top, stopping 98% of COVID-19 particles in the breath of infected people from escaping into the air.

https://sph.umd.edu/news/study-shows-n95-masks-near-perfect-blocking-escape-airborne-covid-19

Depression and memory decline are intimately linked, with new research suggesting that each might affect the other.

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Depression and memory decline are intimately linked, with new research suggesting that each might affect the other.

https://www.newsweek.com/scientists-threat-memory-depression-older-adults-1911187

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