Fertility
Fears that falling birth rates in US could lead to population collapse are based on faulty assumptions
Fears that falling birth rates in US could lead to population collapse are based on faulty assumptions Fears that falling birth rates in the US could lead to population collapse are based on faulty assumptions, including misrepresenting fertility measures and overstating the impact of low birth rates. The total fertility rate, a standard measure of […]
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A common parasite can decapitate human sperm − with implications for male fertility
A common parasite can decapitate human sperm − with implications for male fertility Male fertility rates have been declining over the past half-century, with a recent study finding that male infertility rates increased nearly 80% from 1990 to 2019. A common single-celled parasite called Toxoplasma gondii may be contributing to this trend, as it can infiltrate […]
🏥 Health