Clinical Research Directory

Inclusion Criteria: Healthy Individuals: 1. Ages 18 to 25 years old. 2. Resident in the local area for more than one month. 3. No obvious signs or symptoms of disease. 4. Good psychological condition. 5. College students currently enrolled in Qingyuan Vocational Education City. 6. Having signed an informed consent form, willing to provide relevant survey information and fecal samples. Anxious Individuals: 1. Ages 18 to 25 years old. 2. Resident in the local area for more than one month. 3. Self-rating anxiety scale score greater than or equal to 50. 4. College students currently enrolled in Qingyuan Vocational Education City. 5. Having signed an informed consent form, willing to provide relevant survey information and fecal samples. Depressive Individuals: 1. Ages 18 to 25 years old. 2. Resident in the local area for more than one month. 3. Self-rating depression scale score greater than or equal to 53. 4. College students currently enrolled in Qingyuan Vocational Education City. 5. Having signed an informed consent form, willing to provide relevant survey information and fecal samples. Exclusion Criteria: 1.Pregnant and Lactating Women.