Yoga can be a powerful tool for reducing anxiety and promoting relaxation by calming the mind, regulating the breath, and releasing tension from the body. Here are some yoga poses (asanas) that can help alleviate anxiety:

1. Child's Pose (Balasana): This gentle resting pose helps calm the mind, relieve tension in the back, shoulders, and neck, and promotes deep breathing. Kneel on the mat, sit back on your heels, and then fold forward, extending your arms in front of you or resting them by your sides.

2. Cat-Cow Stretch (Marjaryasana-Bitilasana): This dynamic movement helps release tension in the spine, open the chest, and improve breathing. Start on your hands and knees in a tabletop position. Inhale, arch your back, and lift your chest and tailbone (Cow Pose). Exhale, round your spine, and tuck your chin to your chest (Cat Pose). Repeat the movement with the breath for several rounds.

3. Standing Forward Bend (Uttanasana): This gentle inversion helps calm the mind, release tension in the back and hamstrings, and promote relaxation. Stand with your feet hip-width apart, hinge at the hips, and fold forward, allowing your head and arms to hang towards the floor.

4. Seated Forward Bend (Paschimottanasana): This seated stretch helps quiet the mind, release tension in the back and hamstrings, and promote relaxation. Sit on the mat with your legs extended in front of you. Inhale, lengthen your spine, and exhale, fold forward from the hips, reaching towards your feet or shins.

5. Legs-Up-the-Wall Pose (Viparita Karani): This restorative inversion helps calm the nervous system, reduce stress, and promote relaxation. Lie on your back with your legs extended up the wall, forming an L-shape with your body. Relax your arms by your sides and focus on deep, diaphragmatic breathing.

6. Corpse Pose (Savasana): This final relaxation pose allows the body and mind to fully relax and integrate the benefits of your yoga practice. Lie on your back with your arms and legs extended, palms facing up. Close your eyes, soften your breath, and allow your body to sink into the floor.

7. Alternate Nostril Breathing (Nadi Shodhana): This pranayama (breathing) technique helps balance the nervous system, calm the mind, and reduce anxiety. Sit comfortably with your spine tall. Use your right thumb to close your right nostril and inhale through your left nostril. Then, use your right ring finger to close your left nostril, exhale through your right nostril, and inhale through the right. Continue alternating nostrils for several rounds.

Practice these yoga poses and techniques regularly to help reduce anxiety, promote relaxation, and cultivate a greater sense of calm and well-being. Always listen to your body and modify or skip poses as needed to suit your individual needs and limitations.