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We provide private Vitamin B12 treatment across our two Grimsby branches, serving patients from Healing, Laceby, and the surrounding area

When B12 drops, mental energy often goes with it concentration suffers, reaction time slows, motivation dips, and you may notice a persistent brain fog that doesn't respond to more sleep or better nutrition

And this is not to be mistaken for a comprehensive list

Image: Peter Dazeley/Getty Images About the Author Marygrace Taylor, Health Writer About the Reviewer Pieter Cohen, MD, Contributor Disclaimer: As a service to our readers, Harvard Health Publishing provides access to our library of archived content