The Lingzhi mushroom, also known as Reishi, is a medicinal fungus that has been used in traditional Chinese medicine for thousands of years. It is known for its potential health benefits, including boosting the immune system, reducing stress, and improving sleep quality. The mushroom typically has a glossy, reddish-brown appearance and grows on decaying wood. Lingzhi is often consumed in various forms, such as powders, teas, and capsules. Its active compounds, including triterpenes and polysaccharides, are believed to contribute to its health-promoting properties. While many people use it as a supplement, scientific research is ongoing to fully understand its effects.