How has the birth rate changed over the past decade?, What economic factor has influenced young families’ decisions?, Why are many people delaying starting a family?, What kinds of causes have scientists been researching?, How have stress levels and the environment affected fertility?, What resources have run out or are at risk of running out in some regions?, What genes or medical issues have scientists identified?, How have governments been responding to the situation?, What do experts predict for the future of the birth rate?, Why are some countries at risk of population decline?.

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