There are both psychological and physical issues.
Describe the difference between good stress and bad stress by providing at least 2 examples.
Explain what happens when stress accumulates without being addressed.
Psychological stress is a result of external factors placed upon us that we perceive in some way to be debilitating, or beyond our abilities to cope with. Stress can have both psychological and physical affects. Lets talk about the positive side first. My job as a teacher is to place a "load" on my students they must master. They will have to acquire the knowledge contained in this load by going through a series of mental and physical activities in my classroom. I try to balance this "load" by making it not-too-hard and not-too-easy. In this sense of the word, stress is good. The students will not master the content if I do not stress them in that regard. Another way to think about stress in a positive light is to look at it positively instead of negatively. "That which does not kill us only makes us stronger" is an old saying I use to encourage students in their educational rigors. It basically means, what looks impossible today, if we keep trying, will eventually look elementary, as time passes.
Now for the negative; stress has long been called the "silent killer". I used to teach in an inner-city school district plagued by all the typical problems those type of schools face: violence, low graduation rates, drug use, etc. While I was there, I started experiencing periodic "allergic reactions" to things I had been around all my life. When I left that school system for the one with which I am presently employed, all the "symptoms" vanished. The teachers I was associated with at that time, experienced a plethora of physical ailments, ranging from high blood pressure, to heart attacks, to even death. All these physical ailments were a result of what was perceived as insurmountable odds by the faculty at-large, who felt trapped in their current positions. Such fixations in life can have mortal consequences, all a direct result of stress.