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Vitamin B12 and the Nervous System Vitamin B12 is best known for its nerve-protecting effect: it is involved in the formation of the protective layer around the nerves, known as the myelin sheath

Researchers are exploring its potential in metabolic health, longevity, and other cellular processes in 2026

Heres why: To diagnose fibromyalgia, doctors rely on your description of symptoms, including pain and fatigue, and how long youve been having them

Meta-analysis reveals reproducible gut microbiome alterations in response to a high-fat diet (in Eng)

A similar situation was observed in women from the Women's Health Initiative (WHI) cohort, where the risk of fractures was increased in those with anemia