What are the advantages and disadvantages of the Internet?

Nowadays, technology is getting more and more developed. Internet becomes very necessary in our life. It helps us in everything, every field. Nonetheless, it can be harmful too.
Firstly, I will talk about the advantages of the internet. The Internet gives us a lot of information in many fields: science, culture, art,... We can know how the plants growing, how the birds can fly in the sky. We can study subjects at school and we can learn many helpful skills. Moreover, there are many entertainment programs, many games, many kinds of music on the Internet. It helps us relax and we can have fun after a stressful day at working and studying.
Although the Internet helps us in many things, it has some disadvantages too. Almost all people in the world use the Internet excessively. They spend too much time on social networks, movies, and video games. It's very harmful to their eyes. Many students prefer playing the game to studying lessons at school. They like reading manga on the internet than reading books.
In conclusion, the Internet helps us a lot but it has many disadvantages too.