Used primarily in the metric system, this prefix denotes a factor of 10â9 or 0.000000001. It is frequently encountered in science and electronics for prefixing units of time and length, such as 29 nanoseconds, 100 nanometres or in the case of electrical capacitance, 100 nanofarads.ano- (pref.). A prefix meaning one-billionth; as, a nanogram is one-thousandth of a microgram. nano- (pref.). Very small; submicroscopic; -- used to designate sizes smaller than those that would be referred to as micro-; as, nanoscale manipulations.
The normal range of estrogen varies depending upon the patient's age. Typically a women aged 20 to 29 will have an average level of 149 pg/ml (pictograms per milliliter). A female aged 30 to 39 will average a level of 210 pg/ml.
Healthy estrogen levels contribute to a healthy immune system, improve the function of the brain, and lower the risk of dementia, colon cancer, and macular degeneration. Healthy estrogen levels correlate with lower levels of fat in the mid-section, as well as better insulin sensitivity, increased blood sugar stability, and lower glycation. Other studies have shown the correlation between estrogen levels and quality of sleep, retention of skin thickness and elasticity.