We know we have spent too much time on short videos,such as WeChat, Bilibili，but it’s just too hard for us to quit. Why do we do this? Maybe because we’re built this way. In old times, focusing on the present helps us avoid dangers. And that incorporates into our brains as evolution. For now, there’re too many temptations that we just fall into them before we realize it. Also that, short videos may bring us fulfillment. Continuous stimulation just feeds our brains. Pls help correct the sentences. Thank you!