For busy working professionals, long working hours and lack of rest can contribute to fatigue and illness. BRAND'S® Essence of Chicken with Cordyceps helps to increase the Qi, or vital energy, that flows through the body to promote stamina, overall well-being, and recovery from fatigue and illness. The combination of principal herbs - Cordyceps and Astraglus with Essence of Chicken strengthens the function of lungs, kidneys, liver and benefits the respiratory system