Changes

* Anti-Aging : The astragalus root contains cycloastragenols and astragalosides, two powerful molecules that have been implicated in activating telomerase enzyme production. Research suggests that large doses of these molecules have the potential to not only prevent telomere depletion but to actually rebuild the telomere that has been already lost. While a patented form of the highly-concentrated extract called "TA-65" is available through a proprietary regimen, other extracts and derivative formulas are hitting the supplement market that contain potent levels of these isolated molecules as well. Certain specific varieties of astragalus root naturally contain high levels of these powerful molecules and the extracts can be purchased inexpensively in bulk powders or in capsules.Heavy doses of astragalus extract that is rich in astragalosides are said to have the same effect as TA-65 in rejuvenating telomere growth and increasing the amount of telomere base pairs. In other words, the extract is capable of turning back the age clock.

* Prevents colds : In Traditional Chinese Medicine (TCM), astragalus is used to help prevent colds and upper respiratory infections. Chinese clinical studies revealed that astragalus was effective at preventing common colds. One particular study in China covering 1,000 subjects with inhbited immunity found that those who consumed astragalus (tablets or nasal sprays) experienced fewer cold outbreaks and less severe symptoms.

==Used in Patent medecines==

* [[Gui Pi Tang]]