Ganoderma lucidum, commonly known as the reishi mushroom, is a medicinal fungus that has been used in traditional Chinese medicine for thousands of years. It is recognized for its distinctive shiny, reddish-brown cap and is often found growing on decaying wood. This mushroom is valued for its potential health benefits, including immune system support and stress reduction. Research suggests that Ganoderma lucidum contains bioactive compounds, such as triterpenes and polysaccharides, which may contribute to its therapeutic properties. It is available in various forms, including powders, capsules, and teas, making it accessible for those interested in exploring its health-promoting effects.