Mid-life crises.
D000293:Adolescent; D000375:Aging; D002648:Child; D005260:Female; D006801:Humans; D007223:Infant; D007398:Interpersonal Relations; D008297:Male; D008393:Marriage; D008593:Menopause; D008875:Middle Aged; D009034:Mother-Child Relations; D011157:Population Dynamics; D012380:Role; D012922:Social Change; D012945:Social Values; D013315:Stress, Psychological