'Though the brain is only 2% of human body weight, it uses up to 25% of this in the blood'
oxygen
THE BRAIN: Though the brain is only 2% of human body weight, it uses up to 25% of this in the blood
Though the brain is only 2% of human body weight, it uses up to 25% of this in the blood
Though the brain is only 2% of human body weight, it uses up to 25% of this in the blood
THE BRAIN
oxygen
THE BRAIN