The following are the two most beneficial breathing exercises for improving lung efficiency:
1. Pursed-Lip Breathing
2. Belly Breathing
1. Pursed Lip Breathing
2. Belly Breathing (Diaphragmatic Breathing)
This is a great exercise to participate in. You can take fewer breaths by keeping your airways open longer. As more blood gets in and out of your lungs, you will be more physically active.
To practice, simply inhale through your nose and exhale through your mouth for at least twice as long with pursed lips.
Take a deep breath in through your nose to begin. Keep an eye on the amount of oxygen your stomach absorbs. Place your hands gently on your stomach or a tissue box on it to be aware of how it rises and falls. Exhale for at least two to three times as long as you inhale through your lips.
Relax your neck and shoulders to help your diaphragm assist in the filling and emptying of your lungs.
Watch the video below to understand Pursed Lip Breathing-
Watch the below video to understand Belly Breathing-