What does insulin overdose cause?

Insulin is the only hormone in the body that directly lowers blood sugar. If too much insulin is used, it will cause acute hypoglycemia in the body, showing hunger, palpitation, sweating, trembling hands, fatigue, pale face, dizziness, chest tightness, shortness of breath, etc. If glucose or food is not supplemented in time, such as candy, biscuits, bread, etc. Blood sugar will continue to drop, so that brain cells lack sugar, causing hypoglycemic brain damage, showing lethargy, mental abnormalities, and even coma and death. Therefore, diabetic patients must not arbitrarily increase insulin doses when injecting insulin, and remember to eat on time when injecting insulin, and must be staple food ingredients.