Low self-esteem can give rise to jealousy and insecurity in a relationship. You may question your worthiness to your partner, and believe it is a fluke they like you. As such, it is normal for people with low self-esteem to expect their partner may be attracted to someone else or fear they will leave the relationship.
Answer: Insulin- a peptide hormone made in the beta cells of the pancreas that is central to regulating carbohydrate metabolism in the body
