伽马氨基丁酸

例句：

1. 1. GABA is a neurotransmitter that helps to calm the nervous system.
   GABA是一种神经递质，有助于镇定神经系统。
2. 2. GABA has been shown tohave anti-anxiety and anti-stress effects.
   研究表明，GABA具有抗焦虑和抗压力的效果。
3. 3. GABAis often used in clinical settings to treatanxiety disorders.
   GABA常用于临床治疗中，用于治疗焦虑障碍。