The menopause is a natural part of ageing that usually occurs between 45 and 55 years of age, as a woman's oestrogen levels decline. In the UK, the average age for a woman to reach the menopause is 51. But around 1 in 100 women experience the menopause before 40 years of age. This is known as premature menopause or premature ovarian insufficiency.
How old is too old for a PhD? Ask Question Asked 7 years, 7 months ago. Active 10 months ago.. At the university where I work, there are no limitations or guidelines on appropriate age ranges for a Ph.D., and I'm sure this is true throught the US since age discrmination would be illegal. In practice, we see the opposite problem regarding age.