What harm does the human body lack of "sodium"?

Generally speaking, sodium is not easy to be lacking in human body, but in some cases, such as fasting, eating less, when the intake of dietary sodium is too strict and low, or when high temperature, heavy physical labor, sweating, gastrointestinal diseases, repeated vomiting, diarrhea and so on cause excessive discharge and loss of sodium.

Or some diseases, such as Addison's disease, can cause sodium deficiency when the kidney can't effectively retain sodium, when parenteral nutrition is deficient or sodium is low, and when diuretics are used to inhibit sodium reabsorption by renal tubules.

Sodium deficiency is not obvious in the early stage, such as burnout, indifference, listlessness, and even fainting when standing up. When sodium loss is above 0.5g/kg body weight, nausea, vomiting, blood pressure drop and painful branchial spasm may occur, and chloride is not detected in urine.

Extended data:

Physiological function:

1. sodium is the main positive ion in extracellular fluid, which participates in water metabolism, ensures water balance in the body and regulates water and osmotic pressure in the body.

2. Maintain the acid-base balance in the body.

It is a component of pancreatic juice, bile, sweat and tears.

4. Sodium is related to the production and utilization of ATP, muscle exercise, cardiovascular function and energy metabolism. In addition, sodium also needs to participate in sugar metabolism and oxygen utilization.

5. Keep normal blood pressure.

6. Enhance neuromuscular excitability.

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