was sind elektrolyte — what symptoms are typical?

Electrolytes are charged minerals (e.g., sodium, potassium, calcium, magnesium, chloride, phosphate) essential for nerve impulses, muscle contraction, fluid balance, and acid-base regulation. Typical symptoms of an electrolyte imbalance depend on the specific mineral and whether levels are too high or too low. Sodium deficiency (hyponatremia) often causes nausea, headache, confusion, and in severe cases seizures. Low potassium (hypokalemia) leads to muscle weakness, cramps, fatigue, and heart palpitations or arrhythmias. Excess potassium (hyperkalemia) can cause muscle paralysis and life-threatening cardiac arrhythmias. Calcium deficiency (hypocalcemia) results in tingling around the mouth and fingers, muscle cramps (tetany), and seizures. Magnesium deficiency presents with muscle twitching, tremors, nausea, and sleep disturbances. Because these symptoms are nonspecific, they can easily be mistaken for other conditions. A blood test (serum electrolyte panel) is the gold standard for diagnosis. Anyone suspecting an imbalance should seek medical attention, as severe disturbances can be fatal. The evidence is based on decades of clinical practice and basic physiology, so the evidence strength is human-strong, even though no specific studies are cited here.