Social & Preventive Medicine General 3fd16f6d The term youth includes people in the age group: A 15 to 24 years B 19 to 29 years C 15 to 34 years D 19 to 34 years High-Yield Explanation Adolescence: 10 to 19 years Youth: 15 to 24 years Young people include both the above age groups. Ref: Park 21st edition page: 546.