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Divergent reprogramming routes lead to alternative stem-cell states

Delvin, A

Because your body uses and excretes B12 rather than storing unlimited amounts, consistent timing helps keep your energy and focus steady instead of peaking and crashing. Many people find that taking B12 late in the day can make them feel more alert right when they are trying to wind down, which may interfere with sleep

Training performance often improves because you're recovering faster and your body is efficiently fueling workouts

Progress in Hematology , 107

However, some individuals may experience mild side effects, such as: Fatigue Some users report feeling tired after injections