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In fact, a 2021 study found that higher levels of vitamin B12 may be linked with better sleep quality and decreased use of sleep medication

You need to be able to do activities with precise balance, high load, and speed to ensure that the sciatic nerve and muscles in your leg will be able to keep up with the demands of your body

Vitamin B12 (cobalamin) is a water-soluble vitamin required for DNA synthesis, red blood cell formation, myelin maintenance, and methylation the biochemical process that regulates gene expression, neurotransmitter production, and homocysteine metabolism

Bioavailability and daily requirement of vitamin B(12) in adult humans: an observational study of its colonic absorption and daily excretion as measured by [(13)C]-cyanocobalamin kinetics