What causes high blood sugar ?

High blood sugar can be caused by a variety of factors, including:

1.Dietary habits: Consuming a diet high in sugar or carbohydrates, especially high-GI foods such as white rice and flour, can lead to increased blood sugar levels.

2.Lack of exercise: A lack of physical activity and prolonged sitting can contribute to elevated blood sugar. During exercise, the muscles， thereby reducing blood sugar levels.

3.Insulin resistance: Insulin is a hormone that regulates blood sugar. Insulin deficiency or insulin resistance can lead to high blood sugar.

4.Health conditions: Metabolic disorders such as diabetes, thyroid problems, polycystic ovarian syndrome, and certain chronic diseases like liver and kidney diseases can cause blood sugar to rise.

5.Chemical substances: Certain drugs (such as hormonal agents), alcohol, and drugs of abuse can also contribute to increased blood sugar.

6.Genetic and family factors may also play a role in high blood sugar.

Please note that these are some possible causes, and the specific cause may vary from person to person. If you have questions about a specific situation, it is recommended to consult a professional doctor or healthcare specialist for more accurate diagnosis and advice.