Backbends are a type of yoga pose that involves arching the spine backward. They help to increase flexibility in the spine and open up the chest, promoting better posture and breathing. Common backbends include Cobra Pose, Bridge Pose, and Wheel Pose. These poses can also strengthen the back muscles and improve overall body awareness. Practicing backbends can provide various physical benefits, such as relieving tension in the back and improving circulation. They are often included in yoga sequences to balance forward bends and enhance overall body alignment. However, it's important to approach backbends with caution to avoid injury, especially for beginners.