The content of the handwritten newspaper for healthy growth in the sun is as follows:

1. Maintain a healthy lifestyle, including adequate sleep, a reasonable diet and moderate exercise.

2. Self-explore, understand your own interests, hobbies, strengths and weaknesses, and actively explore your potential.

3. Make progress in learning, establish a correct learning attitude, and work hard to learn various knowledge and skills.

4. Social interaction, establishing good interpersonal relationships with others, and being good at communication and cooperation.

5. Maintain a positive attitude, face challenges and difficulties in life optimistically, and constantly stimulate your potential and creativity.

Through the above content, we can understand that a healthy lifestyle, self-exploration, learning progress, social interaction and a positive attitude are crucial to a person's healthy growth.