One of the functions of the kidney，Regulate the balance of potassium ion concentration

Potassium ions not only participate in electrolyte balance in the human body but also play a key role in nerve signal transmission, especially for myocardial nerve cells. The normal concentration of potassium in the blood is 3.4–4.7 mmol/L. Once it exceeds this range, serious consequences may occur.

Excessive potassium concentration (hyperkalemia), that is, blood potassium higher than 4.7 mmol/L, will affect muscle and nervous system function. Typical symptoms include numbness of hands, feet and tongue. In severe cases, it may cause arrhythmia or even cardiac arrest, which is life-threatening.

Low potassium levels (hypokalemia), when blood potassium is below 3.4 mmol/L, especially below 2.5 mmol/L, are also dangerous and can cause extreme weakness, fatigue, muscle pain, and even heart arrhythmia.

It can be seen that potassium ions must be strictly controlled within a narrow concentration range, which is the basic condition for maintaining normal metabolism and life activities of the human body.

The human kidney is undertaking this complex and precise regulatory task. The kidney filters about 180 liters of blood every day, screens out excess potassium ions from the various foods we consume and ensures blood potassium stability. Regulating potassium is only one of the many functions of the kidney. It also participates in regulating water and salt balance, acid-base status, blood pressure, red blood cell production and many other physiological activities.

Therefore, a deep understanding of the important role of kidneys is the key to maintaining a healthy life.

Protecting kidneys requires daily actions:

Control blood pressure

Maintain good drinking habits

Ensure adequate and high-quality sleep

Healthy life starts with caring for your kidneys.

Jun Li in Toronto