It is also necessary for adults to check the trace elements in their bodies. Trace elements can ensure the effective growth of infants and children during childhood, and can also promote bone development, intellectual and brain development, and prevent other early childhood diseases such as rickets. Adults should regularly check trace elements, such as potassium ions, sodium ions, etc. Many adults also suffer from diseases due to the lack of trace elements in their bodies, such as gastric ulcer and gastritis, because long-term vomiting and diarrhea lead to excessive water loss in the body, which can easily lead to the loss of potassium ions in the body along with water, resulting in hypokalemia in the long run. In severe cases, muscle weakness can affect the respiratory muscles and lead to difficulty in breathing. Patients can also experience dizziness, weakness and even affect the heart, leading to cardiac arrhythmia.