Women's egg cells decline dramatically from birth onward.
Research from the Universities of Edinburgh and St Andrews reveals that by age 30, women have just 12% of their eggs left. After age 40, this drops to a mere 3%.
A newborn girl starts with nearly 2 million eggs, a reserve that diminishes significantly over her lifetime.
This vital data helps guide women with cancer more effectively. For instance, they can freeze their eggs before treatment. Chemotherapy often leads to infertility, but preserved eggs allow women to pursue motherhood afterward.
Read more about egg freezing here