This mushroom has often been referred to as a mushroom of longevity, and is called Lingzhi in Chinese medicine. This is one of the most called-on Chinese supports for the immune system. Studies have shown this fungi to impact white blood cells, and general immune functioning. It may be beneficial in fighting fatigue and depression. The mushroom may be supportive to healthy heart function in the body, as well. Reishi is used as a tea, in capsules, as powder in food, in tincture form, and others.