Positive Stress is also called Eustress. This excitement is felt by people when they are confronted by a demanding situation, which they think they can handle. This fills them with thrill and excitement. Like runners on the track, taking a ride on the roller coaster, taking up a challenging project at workplace.
Positive Stress gives you the energy to throw yourself into something where you want to make some contribution. Approaching exams enhance a student's concentration and learning capability.
Positive Stress is essential for bringing zest to the life. Life without any kind of stress will be very distressing indeed - verging on boredom. When you are bored you crave for stress, you feel a kind of lifelessness. Not a very happy prospect for anybody.
Positive stress makes life worthwhile. A very interesting question is - Will you do anything if you don't feel any kind of stress? It is very doubtful. Seeing man's proneness to inertia, in the absence of any stress, the man will be a dead body!