2nd 3rd optional. FDA has announced an official date of 2010-06 when they will accept submissions to 3 rd edition. The 3 rd Edition will be Mandatory 2013-06-01. Health Canada has announced a mandatory date of 2012-06-01. The EU date of 2012-06-01 has been published in the Official Journal.
I don't know what you mean by root word. Lipo - is the root for fat and used often at the molecular level. Adipose - is the word for fat tissue. fat: <biochemistry> A triglyceride (lipid) that is usually solid at room temperature. http://www.americanheart.org/presenter.j...
Stubborn fat has a lower ratio of beta-receptors to alpha-receptors. As a result, it's metabolized slowly and does not respond to the adrenal hormones. To make matters worse, stubborn fat has more estrogen receptors in the tissues. Estrogen (the female hormone), once bound to the receptors, causes even more fat gain.