Why Brain Work Demands More Nourishing Food

Seventh-day Adventist Publishing Association · Battle Creek, Mich. · May 6, 1873

Why Brain Work Demands More Nourishing Food

Brain work costs more food than hand work. According to careful estimates and analyses of the excretions, three hours of hard study wear out the body more than a whole day of severe physical labor. Another evidence of the cost of brain work is obtained from the fact that though the brain is only one-fortieth the weight of the body, it receives about one-fifth of all the blood sent by the heart into the system. Brain workers, therefore, require a more liberal supply of nourishing food than manual laborers.