Senior three students emphasize their studies. Extracurricular activities may receive little attention. Eat some liquid food (preferably nutritious meal) in the morning. Eat half of a normal meal at noon. Add milk and a fruit for lunch. Eat half of a normal meal for dinner. Insist on exercising for 45 minutes every day, and suggest yoga or skipping rope. They are all simple in-situ exercises, and they are all thin. Apply a mask every night before going to bed.