Breathing exercises, also known as pranayama in yoga, can help to reduce stress, improve lung function, and promote relaxation. Here are some simple breathing exercises you can try:

• Deep breathing – Sit in a comfortable position with your back straight. Inhale deeply through your nose, filling your lungs with air. Hold for a few seconds, and then exhale slowly through your mouth, pushing all the air out. Repeat for a few minutes.
• Alternate nostril breathing – Sit in a comfortable position with your back straight. Use your right thumb to close your right nostril, and inhale deeply through your left nostril. Hold for a few seconds, then close your left nostril with your right ring finger and exhale slowly through your right nostril. Inhale through your right nostril, hold, and then exhale through your left nostril. Repeat for a few minutes.
• Belly breathing – Lie down on your back with your knees bent and feet flat on the floor. Place one hand on your belly and the other hand on your chest. Inhale deeply through your nose, filling your belly with air and pushing your hand up. Exhale slowly through your mouth, pushing all the air out and allowing your hand to fall. Repeat for a few minutes.
• Lion’s breath – Sit in a comfortable position with your back straight. Take a deep breath in through your nose, and then exhale through your mouth while sticking out your tongue and making a “ha” sound. Repeat for a few minutes.

Remember to breathe slowly and deeply, and never force your breath. If you have any medical conditions, consult with a qualified healthcare professional before starting any new breathing exercises.