Actually stress is good for you to some extent, but the point is being able to control this. We get stressed a lot throughtout the day, stress by trafic, stress by family members or even stress when being late. If we are able to control it then it becomes healthy stress. If we kept fighting it, it becomes cronic stress. If we leave it controlling us and will submit to exustion we will feel down and tired after which is not good for us still. The point is to return back to homostasis and continue our day normally. Follow this and you will get away from harmfull stress forever :)