According to the researchers on the study, the risk for a heart problem in the 10
years following fertility therapy is still pretty low — about 10 events for every 1,000 women.
Not exact matches
Until recent
years, factors such as higher
fertility and immigration have kept America from
following the starkly secular path of much of Europe.
Finally, if overpopulation is indicated by unemployment (not strictly speaking a demographic measure, but one that is sometimes used as such), it would seem that the United States experienced serious overpopulation during the Depression (when
fertility fell below replacement levels), and was least overpopulated in the mid-1960s (the
years directly
following the postwar baby boom).
Between 1988 and 1998, sperm motility declined by 2.5 per cent per
year and
following a short period when stud dogs of compromised
fertility were retired from the study, sperm motility from 2002 to 2014 continued to decline at a rate of 1.2 % per
year.
This system often involves clearing of a piece of land
followed by several
years of wood harvesting or farming until the soil loses
fertility.
During the 3
years following a recent birth, mothers were less likely to perceive that instrumental support was available from their social networks when they or their partner had engaged in multi-partnered
fertility... The relationship between multi-partnered
fertility and perceived instrumental support was similar whether the children with a previous partner were the mother's or the father's.