1. Your brain weighs around 3 pounds or approximately 1.4 kg.
2. Your brain needs a constant supply of oxygen and uses around 20% of all the oxygen you breathe. If the brain is deprived of oxygen for 10 minutes, the brain will suffer damage.
3.Weight of brain as a percentage of the total body weight (150 pound human) = 2%.
4. The entire brain is made up of nearly 60% fat and demands 25% of the blood from each heart beat.
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