Prediabetes is defined as having only slightly elevated blood glucose, it is called pre- (before-) because it can turn into regular diabetes by time, in particular if body weight increases.
That is what we are going to prevent with this program! Severe stress in the case of injuries and pain or infections increases the level of stress hormones that reduce insulin sensitivity in the body and can thus raise glucose if the beta-cells cannot compensate.
This is why the diagnosis of diabetes is often made in connection with infections or other acute medical problems.