By 2020, depression is likely to rank second, behind heart disease, as the world's most serious health problem. On both moral and economic grounds, we should do more to treat and prevent it, which includes public policies aimed at encouraging lifestyle choices that promote greater mental health.
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Depression is, according to a World Health Organization study, the world’s fourth worst health problem, measured by how many years of good health it causes to be lost. By 2020, it is likely to rank second, behind heart disease. Yet not nearly enough is being done to treat or prevent it.