The well known obstetrician Julia Tsuei has observed that the higher the level of education a woman has received, and the stronger the woman's self-consciousness, the more she is depressed during pregnancy and has difficult deliveries--and the more common is the situation that she gives up breast-feeding because of inadequate milk after giving birth, or unwillingness to endure the soreness of the nipples.
據名婦產科醫師崔玖觀察發現，愈是受過高等教育、自我意識愈強的婦女，愈有在懷孕期害喜、生產時難產，及產後奶水不足、無法忍受乳頭疼痛，而致放棄親自哺乳的情形。