Overseas medical insurance customers who are trying for a child might be interested to learn that both men and women have a part to play in improving their fertility.
According to Zita West, fertility and pregnancy expert and founder of the Zita West Clinic, there is a lot of focus on the woman's fertility.
This is in spite of the fact that "50 per cent is the man" and there are a number of things men can do to optimise the health of their sperm.
She explained: "Especially when you are going through IVF, and ICSI – where they inject the egg into the sperm, it's almost like: 'We only need one sperm so it doesn't matter' but it does matter."
Things like infections, age, weight and processed food impact the health of sperm.
Cycling and taking a lot of saunas can also be problematic due to the excessive levels of heat which can kill off sperm.
"So look at the factors in your life that may be having an impact on your fertility," the healthcare expert urged.