For how we live.
In 947 Chinese children followed for ten years, those with insulin resistance despite normal blood sugar had a 4.3-fold higher risk of later dysglycaemia, and six amino acids helped predict who would develop it.
Insulin resistance usually causes no symptoms you can feel, which is why it is found through blood tests rather than how you seem. The visible clues are subtle — and it rarely travels alone.
These soft flaps are harmless. Their real interest is metabolic — one study tied them to diabetes with an odds ratio of 1.89 — but a 2026 cohort found no link to prediabetes. Removal is cosmetic, not a home job.
Prediabetes is a high-risk state, not a diagnosis of diabetes. In the trial that defined the field, lifestyle change cut progression by 58 percent — and returning to normal glucose carried a benefit of its own.
Mice lacking the chaperone GRPEL2 stayed leaner on a high-fat diet and kept better insulin sensitivity — an early mechanistic finding, not a treatment, and so far only in mice.
In-lab trials that restricted sleep on weekdays and allowed recovery at the weekend found insulin sensitivity and glucose tolerance still worsened. Population surveys point the other way, and the designs explain why.