Your body has evolved a system that warns and prepares you for change and danger. This is called the fight or flight system. When under stress, the system causes you to be more alert, and it makes the heart beat faster. Stress cannot be eliminated but it can be productive if you learn how to handle it effectively. Stress causes anxiety, which, in small doses, is healthy, because it motivates you to get things done.
Stress is both additive and cumulative.
It adds up over time until a state of crisis is reached and symptoms appear. So, even when a series of little things happen which make you anxious and nervous, can, over a period of time, be harmful. Stress can make you susceptible to colds, respiratory disorders, and even tooth decay. It can also increase your risk for developing heart disease, high blood pressure, diabetes, asthma, ulcers, colitis, and cancer. Overambitious goals are a frequent cause of stress Get adequate sleep.