New findings strongly suggest that COVID-19 may negatively affect sperm quality and reduce fertility in men, according to research published in the Journal Reproduction. The study indicates that COVID-19 infection can cause increased sperm cell death, inflammation, and oxidative stress, resulting in lower sperm quality and potentially reducing fertility.

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General Motors, in partnership with Navistar, says it will focus on fuel cells for long haul trucks. According to reports, they will include a tie-in with a company called OneH2 to produce hydrogen and control the storage, delivery, and designing systems.

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Apparently, Apple quietly added a new iMessage security feature in iOS 14 called BlastDoor. BlastDoor is a new sandbox inside iMessage that receives and sanitizes all iMessage content before it’s shown to the user.

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The term "3D printing" can refer to a variety of processes in which material is deposited, joined, or solidified under computer control to create a three-dimensional object, with the material being added together (such as liquids or powder grains being fused together), typically layer by layer.

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Today we are discussing teeth. Our ancestors had much bigger jaws than we do, which helped them chew a tough diet of roots, nuts, and leaves. And what meat they ate, they tore apart with their teeth, all of which led to worn-down chompers that needed replacing.

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