Did you Know? The Flash is a title, not a name.
There have been several persons who have taken on the role of The Flash. The superheroes in the canon tale are Jay Garrick, Barry Allen, Wally West, and Bart Allen at various times in time. The original Flash was Jay Garrick. The most well-known of the four is Barry Allen. Wally West was once Barry's sidekick, and Bart is his 30th-century grandson!
Lack of exercise and obesity are the two major environmental variables for insulin resistance (and type 2 diabetes).