• Usually, ovarian function goes hand in hand with age, and as a woman becomes older, her ovarian response starts declining.

• Every girl is born with a finite number of eggs, and their number progressively declines with age. A measure of the remaining number of eggs in the ovary is called the "ovarian reserve"; and as the woman ages, her ovarian reserve gets depleted.

• The infertility specialist is really not interested in the woman's calendar (or chronological age), but rather her biological age - or how many eggs are left in her ovaries.