Doctors are observing a striking shift in women’s health: conditions once typical in the late 30s, such as hormonal imbalance, irregular cycles, infertility, and ovarian ageing, are now appearing in women in their 20s. Experts attribute this to both biological changes and factors owing to way of life. One major biological driver is the earlier onset of puberty, now often between ages 8 and 9, which accelerates ovarian reserve decline. Alongside this, polycystic ovary syndrome (PCOS), irregular menstruation, and early ovarian ageing are increasingly linked to modern living patterns.