The purpose of this study is to determine whether BRAND'S® Essence of Chicken are effective in the promotion of resilience and resistance to stress-associated cognitive inhibition.

This is a placebo-controlled, randomized, double-blind trial. There will be 100 subjects. Subjects are randomly assigned into either placebo or BRAND'S® Essence of Chicken (BEC), 70cc daily for 2 weeks, group.

Stress test, cognitive function assessment and blood tests will be carried out at Week 0, Week 2, and Week 4 (2 weeks after termination of supplementation).

The primary end-point is the better improvement of cognitive function after supplement with BEC than placebo. The second endpoints include improvement of global health survey and changes of biomarkers related to stress and immunity.

Inclusion Criteria:

• aged over 20 years,
• mildly stressed with Perceive Stress Scale (PSS) score higher than 25
• All the participants should not require medication for their mood disturbance affected by stress during the trial.

Exclusion Criteria:

• history of chronic diseases
• any psychiatric or neurological diseases (e.g. depression)
• other medical illnesses (e.g. stroke, diabetes, other cardiovascular diseases)
• allergy history to chicken