Human beings are not as powerful as we think. Even though we are the only intelligent creatures on the earth, we are still ordinary members of nature. Like other creatures on the earth, we will experience birth, old age, sickness and death, and even our lifespan, and our immune system is not as strong as some lower creatures. Therefore, in human society, there is a word called "preparing for a rainy day". In short, before a disaster occurs, we need to have a sense of crisis and make some preparations in advance, so that we can face emergencies. When the time comes, you can stay calm in the face of danger, such as with one of the most essential items in your home: Individual First Aid Kits (IFAK).