Is Insulin useful for stress?

Insulin is primarily a hormone for blood glucose regulation, used medically in diabetes or in critical care for stress hyperglycemia. The idea of using insulin directly against psychological or physiological stress is not evidence-based. Stress can affect insulin requirements (e.g., via cortisol), but administering insulin without a medical indication is dangerous and can cause hypoglycemia. No validated DNA tests justify personalized insulin use for stress. The evidence is unclear, as no clinical trials address 'insulin for stress' as a treatment. Caveat: insulin is a prescription drug; use without medical supervision is not recommended.