The statement is quite true as this is natural for everyone to get worried. In other words we all have to face the stress. When stress exceeds beyond a certain level then it hampers our problem solving abilities and make us vulnerable to mistakes or even blunders. The symptoms of uncontrollable stress are trembling hands, cold extremities, stammering voice and shattering thoughts. But if we are able to control our stress then we can do well as controlled stress assist in brain storming.