reproductive health

Low Sperm Count Linked To Mothers’ Smoking

Male babies that do not have good fetal growth or are exposed to their mothers' smoking are more likely to have a lower sperm count as adults, according to a new study.

Making Good Sperm Drains Males, Scientists Say

A new study shows the production of sperm is more biologically taxing than previously thought, challenging the traditional view that sex and sperm production come cheaply to males.