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B12 deficiency is one of the most common and most frequently overlooked nutritional deficiencies, affecting those on plant-based diets, adults over 50, individuals on certain medications, and anyone with reduced gastrointestinal absorption

Restoring those levels may reverse aspects of metabolic aging

Mood and Motivation: Some individuals find that boosting neurotrophic factors correlates with better mood regulation and a heightened sense of motivation or mental clarity

Therefore, a pan-coronavirus vaccine that is able to induce immunity targeting combinations of epitopes conserved across the whole coronavirus family should also protect against future variants and emerging viral species, in which these epitopes will likely be retained owing to functional constraints