The second is sexual psychology. If teenagers don't understand the sexual impulse, sexual desire and sexual consciousness in adolescence, they may have psychological conflicts and pressures, resulting in tension, fear and guilt. Parents should let their children learn gender identity in the process of growth and development, determine and improve their gender identity, understand the direction of their sexual physiology and psychological development, set foot on the goal of health and maturity, and learn to live in harmony with the opposite sex.