An adaptogenic mushroom is a type of fungus that is believed to help the body resist various kinds of stress, be it physical, biological, or emotional. Adaptogens, in general, are substances that balance and stabilize physiological processes, enhancing the body's resilience. Some well-known adaptogenic mushrooms include Reishi, Chaga, Cordyceps, and Lion's Mane. They are often used in traditional medicine practices for their potential to boost the immune system, improve energy and stamina, and support mental clarity and calm.