Jealousy is an emotion consisting of negative feelings like insecurity, fear, and anxiety over the anticipated loss of something valuable, especially a human connection. While females are often assumed to be more prone to jealousy than males, the document discusses different perspectives on gender differences in jealousy by examining factors like emotionality, comparison to others, and relationship insecurities. A survey included in the document found that a majority of women self-reported being more jealous than men.