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Causes of Type 1 Diabetes

  • In type 1 diabetes, the body no longer makes insulin because the body's own immune system has attacked and destroyed the cells where insulin is made. The cause of this isn't entirely clear but it may include genetic risk factors and environmental factors. One theory is that type 1 diabetes may occur after having a specific virus.

  • People with type 1 diabetes must take insulin every day to live. There is no known way to prevent or cure type 1 diabetes, but it can be controlled by keeping blood glucose (sugar) levels within a normal range.