Acute stress may disrupt decision making and affect cognition. Coercive influence creates conflict that can disrupt entire group functioning. Iron Man fails in his attempt to disrupt the Phoenix Force. However, when snowstorms do occur, they can disrupt normal routines for several days. Trains have to reduce speed, which can disrupt the timetable. In addition, hypoglycemia occurring during sleep may also disrupt delta-wave activity. Human activities are a concern in that they may disrupt these fishes. Politicians and police said that the campaign of violence aimed to disrupt the election. Seventeen Volunteers were able to severely disrupt the British advance, killing or wounding 240 men. That is, trolls purposely disrupt forums. Rainwater can disrupt signals underground and require the electrified third rail to be shut off. It is proposed that drugs such as proguanil act to disrupt retinoid homeostasis. She resents chaotic gods and any who would disrupt her work. Warming temperatures or hurricanes can still disrupt or even kill nursery corals. To disrupt and clamp down on criminal activity.