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.
Best known for its role in promoting bone strength, calcium is also essential for muscle function including heart function, as well as cell signaling, nerve transmission and hormone secretion. Combined with a balanced diet, drinking mineral water can help you get the calcium you need for optimal health.