With a 25% infertility rate in the western world that is not replicated in the East or in the animal kingdom she believes that infertility is as much mental as physical.
Spending too long trying NOT to get pregnant can block the brain when you finally decide to get pregnant.
The strongest force in every human being is that the body has to match what is going on in the mind. Every thought we think has a physical reaction in the body. An equally strong force is that nothing will influence you more in your life that what you link pain and pleasure to.