A single dose of stem cells can help older people with frailty build up their endurance. Plus, how to successfully make a career pivot and what ‘adulthood’ really means.
Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00592-y
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В России ответили на имитирующие высадку на Украине учения НАТО18:04