Men have biological clock too, claim researchers
Scientists said men who wait until their 40s before starting a family face a greater chance of their partner having a miscarriage, because of the poorer quality of their sperm.
“Drops in fertility from the age of 35 have been traditionally thought of as a fact-of-life for women but our study shows the same is true for men,” said Dr Mark Bowman, the director of a Sydney IVF clinic which carried out tests on 3,324 men over four years.