Question
A teenager began to experience facial hair and seminal emissions at the age of 12 to 13, but has been experiencing growth spurts since the age of 13.
Answer
Based on the description, the physiological changes the teenager is experiencing in early puberty are within the normal range. Males typically reach their final height around the ages of 20 to 24, so there is still a possibility of further growth. Factors influencing height include mental state, dietary habits, physical activity, and genetics. It is recommended that the teenager enhance their nutritional intake, such as by consuming pickled pork ribs with vinegar, eggs, beef, and milk, and focusing on vertical exercises to promote growth. These nutritional health suggestions provided by the Nutrition and Health Department are of positive significance for the healthy growth of adolescents.