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.
Changes in estrogen receptors in the hypothalamus of the brain, a sign of menopause, means it can be harder to lose weight. In turn there is a greater burden on women to eat a healthy diet and exercise more to help their metabolism make up for the loss of estrogen, which helps regulate weight gain and appetite. Interestingly, fat cells produce estrogen, along with other hormones and proteins.