Nick TriggleHealth correspondent
While lifesaving vaccines face a relentless onslaught from the Trump administration—with fervent anti-vaccine advocate Robert F. Kennedy Jr. leading the charge—scientific literature is building a wondrous story: A vaccine appears to prevent dementia, including Alzheimer's, and may even slow biological aging.，推荐阅读夫子获取更多信息
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For now, the images capture a brief, dynamic moment in a star's death march, offering a rare peek at how its debris scatters through space, seeding future generations of stars and planets.