Your hairline might flag high insulin before your glucose test does.
Finnish researchers found men balding before 35 were more likely to have high insulin, belly fat and high blood pressure. In 324 women, high fasting insulin meant about 65% higher odds of real hair loss.
Genes matter, and this is a link, not proof. Insulin can run high for years while sugar looks normal.
Ask about a fasting insulin test. Seen this pattern in your family?