If the 12th graders of all 41 countries whose 8th graders participated in TIMSS had also
participated in TIMSS, only South Africa would have scored lower than the US.
Male patients at a fertility clinic on the edge of London
were more likely to have fewer, less active sperm if they drank water from the Thames Water company than if
they drank water from outside London.
Exposure to excess estrogenic compounds can cause
developmental and
reproductive problems in both sexes, but
especially males.
Declines in sperm counts might be occurring because of a
complex interference with hormones involving the hypothalamus in the brain and the pituitary
gland.
