对成人来讲,必需氨基酸共有八种。这八种氨基酸人体自身不能合成或合成速度不能满足人体需要,必须通过食物来补充。如果缺少上述氨基酸,将影响健康。例如缺乏色氨酸,可能出现神经错乱、幻觉、失眠等症状,缺乏苏氨酸可能出现脂肪肝,因此,必须补充必要的食物,身体才能重新恢复活力。就像人体缺乏必需氨基酸影响健康一样,一个新毕业的医学生,虽然经过了5年的医学本科教育,但因缺少必要的专业培训和实践,仍然无法胜任临床医生的岗 For adults, there are eight essential amino acids. The eight kinds of amino acids can not be synthesized by the human body or synthesis rate can not meet the needs of the human body, must be supplemented by food. If the lack of the above amino acids, will affect the health. For example, the lack of tryptophan, may appear disorders, hallucinations, insomnia and other symptoms, the lack of threonine may appear fatty liver, therefore, the necessary food must be added, the body can regain vitality. Just as the body’s lack of essential amino acids affects health, a newly graduated medical student, after five years of undergraduate medical education, is still not qualified as a clinician due to the lack of necessary professional training and practice