Anxiety can be positive or negative. A little worry can help you get ready for an upcoming situation. For example, if you are preparing for a job interview, a little worry may help push you find out more about the position and then you can present yourself more professionally to the employer. On the other hand, excessive worry can lead to physical problems. Examples of these problems include high blood sugar levels and high blood fats. Continuing anxiety can also cause emotional problems. Some people become depressed after being worried for a long time. Some people even have suicidal thoughts because of continuing anxiety. In conclusion, the right level of anxiety can be helpful while too much anxiety can be harmful.