Fast Foods are tasty and cheaper and can be obtained in ready-made packs. But fast foods do not have any nutritional value and it cause lots of harm to us. In addition, fast foods directly cause negative mental effect. Such as depression, irritable, anxiety etc. And also, fast foods would reduce the ability of people to enjoy life and damage the happiness of human. And my works would show the disadvantages of fast food, how to stay away from fast food and how to enjoy life again.