The lower boundary of the exosphere is called the exobase. It is also called exopause and 'critical altitude' as this is the altitude where barometric conditions no longer apply. Atmospheric temperature becomes nearly a constant above this altitude.
Sodium â the volatility and solvent mineral: essential to life, all body fluids contain sodium â itâs needed for many biochemical processes including water balance regulation, fluid distribution on either side of the cell walls, muscle contraction and expansion, nerve stimulation and acid-alkaline balance.
- The trace mineral selenium is vital to the development and movement of white blood cells. - Both Siberian ginseng (eleuthero) and Asian ginseng provide support for the immune system. - Echinacea helps stimulate the immune system in a variety of ways, including increased white blood cell production.