title: The influence of world trends upon health.
mesh_terms: D000367:Age Factors; D000368:Aged; D005191:Family Characteristics; D014943:Global Health; D006801:Humans; D008511:Medicine / Q000639:trends; D009729:Nursing / Q000639:trends; D011156:Population Density; D012922:Social Change; D019966:Substance-Related Disorders