The term "teenage girls" refers to females who are in their teenage years, typically between the ages of 13 and 19. During this period, they experience significant physical, emotional, and cognitive changes as they transition from childhood to adulthood. Teenage girls often face unique challenges such as navigating social relationships, developing self-identity, and dealing with body image issues. They are also at a critical age for mental health development, making it important to provide support and resources during this time.