Nano is a prefix meaning extremely small.. When quantifiable, it translates to one-billionth, as in the nanosecond. Nano comes from the Greek word nanos, meaning dwarf..ano is a prefix meaning extremely small.. When quantifiable, it translates to one-billionth, as in the nanosecond. Nano comes from the Greek word nanos, meaning dwarf..
Aug. 19, 2003 -- Obese women may be more likely to develop breast cancer largely because their bodies produce more estrogen than thin women do. New research suggests that the increase in breast cancer risk faced by obese postmenopausal women may largely be due to higher levels of estrogens circulating in their bodies.
Estrogen controls growth of the uterine lining during the first part of the menstrual cycle, causes changes in the breasts during adolescence and pregnancy and regulates various other metabolic processes, including bone growth and cholesterol levels. Estrogen & Pregnancy. During the reproductive years, the pituitary gland in the brain generates hormones that cause a new egg to be released from its follicle each month. As the follicle develops, it produces estrogen, which causes the lining of the uterus to thicken.