I dug out an electric blanket which even though twenty years old was still in its original packaging, unused.
It belonged to a late brother of mine, who was always buying things and then jamming them into closets. However, unlike the primitives, he could afford to do that.
I read the instruction manual, which states one should not use an electric blanket if one has diabetes.
I don't have diabetes, but am curious.
Why should a diabetic not use an electric blanket?