How does adult onset Type I diabetes work? Is it “burnout” of the body’s ability to make insulin? Why isn’t it noticed sooner? Does good lifestyle prevent symptom development?

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How does adult onset Type I diabetes work? Is it “burnout” of the body’s ability to make insulin? Why isn’t it noticed sooner? Does good lifestyle prevent symptom development?

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The leading theory is that there’s some trigger for an autoimmune condition which leads to your own immune system destroying your insulin producing (beta) cells in the pancreas..

Diagnosed at 49 with Type 1. I was healthy, ran with my dogs daily, non drinker and living a healthy life. No history of Type 1 in my family.

Got Covid and my pancreas died.

Type one can be triggered with trauma, illness or just plain old genetics. If there’s a history of type one, you are at risk. In my case it was Covid which triggered it. Lifestyle has nothing to do with type one.

Good lifestyle reduces the risk of autoimmune diseases in general, but we don’t know how to prevent them.

If we knew what caused this we could save a lot of people from a lot of suffering but we don’t, and that’s the ELI5 answer.

Something causes the body’s immune system to start attacking its own cells. Could be stress, could be a recent infection of another pathogen, could be something else. If it starts attacking beta cells in the pankreas, you get type I diabetes. I got hypothyroidism, which is a condition very similar to diabetes except the thyroid is involved instead of the pankreas.

Eating well, exercising etc etc is always good advice for all aspects of your body but nothing will make you immune towards these kinds of things.