Nervous exhaustion from mental overwork is most often due to neglect of this rule and the brain worker should limit his regular day's work to a reasonable number of hours per day and those when the brain is at its best.


Applied Biology: An Elementary Textbook and Laboratory Guide (ed. 1911)


Nervous exhaustion from mental overwork is most often due to neglect of this rule and the brain worker should limit his regular day's work to a...

Nervous exhaustion from mental overwork is most often due to neglect of this rule and the brain worker should limit his regular day's work to a...

Nervous exhaustion from mental overwork is most often due to neglect of this rule and the brain worker should limit his regular day's work to a...

Nervous exhaustion from mental overwork is most often due to neglect of this rule and the brain worker should limit his regular day's work to a...