Prevention of mental disorders of old age.
D000368:Aged / Q000523:psychology; D000544:Alzheimer Disease / Q000517:prevention & control; D003704:Dementia / Q000517:prevention & control*; D003866:Depressive Disorder / Q000517:prevention & control*; D006801:Humans; D008875:Middle Aged; D012306:Risk; D012959:Socioeconomic Factors