Wisdom teeth extraction after the body has no strength may be too nervous, may also be anesthesia brought about by the adverse reaction. 1. Mental tension, wisdom teeth extraction is a small surgery, if the extraction time is longer, high mental tension, or bleeding more cases, some people may appear after the operation of the symptoms of lack of strength, generally as long as the rest a few hours the body will gradually recover. 2. Adverse reaction to anesthesia, in the extraction of wisdom teeth in the process may be used to anesthesia, anesthesia in the body may lead to physical effects, adverse reactions, may produce symptoms of lack of energy. If there are obvious symptoms of discomfort, it is recommended to actively seek medical examination and treatment.