Introduction
anxiety
Test anxiety, characterized by feelings of failure, tension, and worrying when an individual faces a vital test for promoting, occurs prevalently among college students. We reported that about 20%-40% of college students suffer from test anxiety in our previous study (The issue of how anxious students process these exam stress-induced health threats is of great interest. Although many coping strategies have been suggested to address anxiety for students, including supplying proper nutrition (Recently, a variety of probiotics have been reported to possess effective stress-modulating and anxiolytic effects on stressed subjects 
