I think it is really meaningful to carry out public welfare activities of donating blood for free, because in many clinical work, especially in the operating room, blood is really needed to save patients! Now, there are still many people who don't understand that blood donation is actually good for our health. I remember when I first learned, I told my mother that she didn't understand. She wouldn't let me donate blood, saying that donating blood is not good for our health and in various ways. Maybe they don't understand the benefits of donating blood! I think every healthy person should give full play to the spirit of blood donation, because you don't know whether we or our relatives will use this kind of blood one day, so it's really important. Then let me talk about the benefits of donating blood without compensation! Because blood cannot be made artificially, it can only be donated by healthy people. As we all know, human blood cells have a certain cycle, and the human body can regenerate blood cells. As long as you donate a certain amount of blood within the scope of blood donation stipulated by the state, it can promote the regeneration of our blood cells, but it actually accelerates the formation of our blood cells, which I think is good for our health. This is like promoting our metabolism to a certain extent, and if you donate blood for free and reach a certain amount, you can use blood at a discount when you need it, or when your immediate family members need it. So I think I can help others with my own blood when I am in good health. This is also the performance of saving lives. When I need it in the future, others will help you for free. I think this is a process of mutual assistance, and there will be a reaction when blood transfusion, but ordinary medical workers will know this truth, so it is everyone's responsibility to donate blood without compensation. Don't be afraid, do something caring boldly!