undersleep

Updated: May 4, 2025

When maturity is complete this need abates. If this be correct, the phenomenon of second breath, so characteristic of adolescence, and one factor in the inebriate's propensity, is ontogenetic expression of a rhythm trait of a long racial period. Youth needs overexertion to compensate for underexertion, to undersleep in order to offset oversleep at times.

G. Stanley Hall - Youth: Its Education, Regimen, and Hygiene