The cat-cow stretch is a gentle yoga pose that helps improve flexibility and relieve tension in the spine. It involves moving between two positions: the cat pose, where you arch your back and tuck your chin, and the cow pose, where you lift your head and tailbone while dropping your belly. This flow helps to warm up the back and improve posture. To perform the cat-cow stretch, start on your hands and knees in a tabletop position. Inhale as you transition to the cow pose, and exhale as you move into the cat pose. Repeat this sequence several times to enhance spinal mobility and relaxation.