Is stress necessary to motivate us

I do not agree that stress is necessary to motivate us. I get motivation from being stress-free. I have better days when I am not stressed. I am happy and joyful, instead of angry and frustrated. When I get stressed I just am down or angry and don’t want to be bothered. I have kids, and they can tell when I have a stressful day because it shows on my face. Then they are not happy and I just get more stressed then before. If people did not feel any stress their productive levels would probably be very good.
Getting things done eliminates worries. If you are not stressed than you can focus on getting done what needs to be done. I think my ideal level of stress is when I am so fed up I want to explode. If I start to cry and I just feel like I can’t take anymore, my stress level is very high. I try to control my stress level, and try to be a very happy person. That’s how I like to be. Under no circumstances is it ever acceptable to treat coworkers or employees differently because of their differences.
You should never judge a book by its cover before taking the time to read it. Our differences are what make us who we are. You and your coworkers are not going to see everything the same, so you should take in their differences, and accept them as they are. I think you should recognize coworker or employees openly. Everybody has something they do one way, and the next person does it another way. It is okay to take in others judgment, and look at it as a positive, and not a negative thought.