A severe decline in child births has occurred over the past half century, which will lead to
considerable population declines, particularly in industrialized regions. A crucial question is …

In recent decades, the decline in human fertility has become increasingly more worrying:
while therapeutic interventions might help, they are vexing for the couple and often …

Semen quality has declined especially among Western men. Experimental and
epidemiological studies have shown potential links between exposure to environmental …

All individuals are exposed to certain chemical, physical, biological, environmental as well
as occupational factors. The data pertaining to role of these factors on female reproduction …

Toxic and essential trace elements are associated with human fertility. However, limited
studies have been conducted on the relationship between trace elements and in vitro …

Background The preconception period represents transgenerational opportunities to
optimize modifiable risk factors associated with both short and long-term adverse health …

Dietary assessment reports and population surveillance programs show that chronic
exposure to low levels of environmental cadmium (Cd) is inevitable for most people, and …

STUDY QUESTION To what extent is cigarette smoking associated with reduced
fecundability? SUMMARY ANSWER Current female smokers, particularly those who had …

Background Exposure to ambient air pollution has been reported to be inversely correlated
with human reproductive health. However, the results of previous studies exploring the …

The main risk factors for important reproductive health issues such as subfertility and
perinatal mortality largely originate in the periconception period. To evaluate associations …