How to LiveChapter IV · ACTIVITYReading editionChapter navigation27 reading sectionsGo to chapterChoose a chapter…Front matterHOW TO LIVEFOREWORDPREFACEChapter I · AIRChapter II · FOODChapter III · POISONSChapter IV · ACTIVITYChapter V · HYGIENE IN GENERALHYGIENE REFERENCE BOARD OF THE LIFE EXTENSION INSTITUTE, Inc.PORTRAITS OF MEMBERS OF THE HYGIENE REFERENCE BOARDHOW TO LIVE INTRODUCTIONChapter I · AIRChapter II · FOODChapter III · POISONSChapter IV · ACTIVITYChapter V · HYGIENE IN GENERALSECTION I NOTES ON FOODSECTION II NOTES ON OVERWEIGHT AND UNDERWEIGHTSECTION III NOTES ON POSTURESECTION IV NOTES ON ALCOHOLSECTION V NOTES ON TOBACCOSECTION VI AVOIDING COLDSSECTION VII SIGNS OF INCREASE OF THE DEGENERATIVE DISEASESSECTION VIII COMPARISON OF DEGENERATIVE TENDENCIES AMONG NATIONSSECTION IX EUGENICSINDEXPrevious chapter ←Chapter III · POISONSNext chapter →Chapter V · HYGIENE IN GENERALAll chapters and sections (27)Opening pagesFront matterOther sectionsHOW TO LIVEFOREWORDPREFACEChapters12345Other sectionsHYGIENE REFERENCE BOARD OF THE LIFE EXTENSION INSTITUTE, Inc.PORTRAITS OF MEMBERS OF THE HYGIENE REFERENCE BOARDHOW TO LIVE INTRODUCTIONChapters12345Other sectionsSECTION I NOTES ON FOODSECTION II NOTES ON OVERWEIGHT AND UNDERWEIGHTSECTION III NOTES ON POSTURESECTION IV NOTES ON ALCOHOLSECTION V NOTES ON TOBACCOSECTION VI AVOIDING COLDSSECTION VII SIGNS OF INCREASE OF THE DEGENERATIVE DISEASESSECTION VIII COMPARISON OF DEGENERATIVE TENDENCIES AMONG NATIONSSECTION IX EUGENICSINDEXCHAPTER IV ACTIVITYWork, Play, Rest and Sleep 89◇Serenity and Poise 105◇← CHAPTER III POISONSCHAPTER V HYGIENE IN GENERAL →