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What is T1D?

Join us in turning Type One into Type None.

Type 1 diabetes (T1D) is an autoimmune disease that impacts millions of people around the world.

The disease occurs when the body's immune system attacks and destroys the beta cells in the pancreas that produce insulin, a hormone essential to turning food into energy. Without insulin, glucose from food stays in the blood, where it can cause serious damage to all of the body's organ systems.

Type 1 diabetes strikes both children and adults suddenly and is unrelated to diet or lifestyle. It requires constant carbohydrate counting, blood-glucose testing, and lifelong dependence on injected insulin.

With T1D there are no days off, and there is no cure. Join the JDRF Ride to Cure Diabetes, and together, we will create a world without T1D.

T1D by the numbers

  • Some 1.25 million Americans are living with T1D, including about 200,000 youth (less than 20 years old) and more than 1 million adults (20 years old and older).
  • 40,000 people are diagnosed each year in the U.S.
  • 5 million people in the U.S. are expected to have T1D by 2050, including nearly 600,000 youth.
  • Between 2001 and 2009, there was a 21 percent increase in the prevalence of T1D in people under age 20.
  • In the U.S., there are $14 billion in T1D-associated healthcare expenditures and lost income annually.
  • Less than one-third of people with T1D in the U.S. are consistently achieving target blood-glucose control levels

Learn more at jdrf.org/about/what-is-t1d.

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