Hannibal Regional Blog

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Our blog offers content about healthcare, healthy living and the culture at Hannibal Regional.


Brain Health Facts

Brain Health Facts

Brain Health1. Your brain has ENORMOUS energy and nutrient demands. 

  • The average brain is 2% of body weight yet accounts for 20-30% of the body’s total daily energy expenditure and uses 20-25% of all the glucose that enters the bloodstream.

2. Your brain requires a very robust blood flow. 

  • The average brain utilizes 15% of the body’s total blood output from the heart. 


3. Your brain is highly susceptible to oxidative damage. This is due to the following unique brain features: 

  • The brain is filled with fat. Fatty tissues are more readily oxidized. 
  • The brain is filled with large amounts of iron (from its robust blood flow) and iron can be a powerful pro-oxidant. 
  • The brain processes massive amounts of oxygen (25% of all the oxygen you breathe) and oxidative stress/oxidation is a normal byproduct of oxygen metabolism.

4. Oxidation in the brain leads to inflammation in the brain. Inflammation is the culprit for most all forms of damage that occur in the human body and is a fundamental driver of chronic diseases. Stress, depression, other forms of mental strife, as well as neurodegenerative diseases like dementia are clearly linked to excess inflammation in the body and brain.

Blog post provided by:
Katie Foster, RDN, LD