Which mushroom has been used in traditional Chinese medicinal practices for millennia?

Reishi

The Reishi, known in China as the "mushroom of immortality," is revered for its medicinal properties for over 2,000 years. This mushroom symbolizes longevity and health in Chinese culture and is used in many traditional medicinal practices to boost the immune system, fight stress, and improve sleep. Reishi is often consumed as tea or extract, and its popularity has spread worldwide as a superfood. Its ability to grow on dead or dying trees also highlights its ecological role as a decomposer, participating in the life cycle by recycling nutrients in forest ecosystems.