The state of your parents’ dosha at the time you were conceived is the primary responsible for your constitution. This is because the qualities your parents in life continuously affect the dosha in every cell for their bodies.
Let us look at a simple example. Imagine a father-to-be who has a pitta constitution and a pressurized, intellectual job in which he is very ambitious. His current doshic state has been higher pitta than his constitutional balance. The mother-to-be has a kapha constitution and works part time in an undemanding job. She is often bored in the evening waiting for her partner to come home, so she spends her time nibbling and dozing in from of the television. Her kapha energy will be in excess.
All three dosha will be in the baby’s constitution, but one, or maybe two, will predominate. If, at the time of conception, the pitta in the father’s sperm is stronger than the khapa in the mother’s ovum, the baby will have a pitta constitution, with kapha secondary. If the kapha from the ovum dominates, the baby will be khapa, with pitta secondry. If kapha and pitta are of equal strength, the baby will have a pitta-kapha constitution.
In the same way, the state of your doshas and those of your partner will determine the constitution of your offspring. If you and your partner wish to conceive a child, your aim should be to give the baby a well-balanced constitution. Factors during pregnancy, such as the mother’s diet as well as the circumstances surrounding by the bith experience, can have a secondary influence on the baby’s constitution.
This story is from – “The book of Ayurveda. A holistic approach to health and longevity” / by Judith H. Morrison followed by Dr. Robert E. Svoboda / Touchstone / page 9