Sleep in industrialized settings in the northern hemisphere.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002940:Circadian Rhythm; D003431:Cross-Cultural Comparison; D005260:Female; D006801:Humans; D007221:Industry; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012890:Sleep; D013997:Time Factors