Author Henry David Thoreau was among those who spoke out in defense of John Brown after his arrest following the Harpers Ferry raid. Thoreau penned an essay, âA Plea for Captain John Brown,â in support of his fellow abolitionist.
1 The average age of U.S. women at the time of menopause is 51 years. 2  The most common age range at which women experience menopause is 48-55 years. 3  Premature menopause is defines as menopause occurring in a woman younger than 40 years. 4  About 1% of women experience premature menopause.
The average age for menopause in the United States is approximately 52 years, but the menopause transition can last for a number of years. During the menopause transition, women's ovaries produce less and less of the hormone estrogen, until menses stops completely. The loss of estrogen may cause hot flashes, night sweats, insomnia, headaches, irregular periods, and vaginal dryness.