This work presents a relationship between environmental
conditions and reproductive performance in modern humans.
Birth rates and sex ratio (SRB) at birth were analyzed from
large data scales. The results include data from people working
or living under different job respectively socio-economic
conditions, such as employees working in the academic field,
employees under supervisory or hire and fire conditions, and
people who have better access to resources. The results show
that employees who have better jobs and earn more money do
have more children and females under better socio-economic
conditions do give birth to more sons.
In conclusion, it is suggested that different socio-economic
environmental conditions may have an impact on female and
male birth rates and SRBs, which may be related to stress