Pursed lip breathing allows more control over your breath by slowing it down and making it more intentional. It improves the mechanics of your lungs and rebuilds your body’s habit to breathe deeply. It’s highly recommended for those with COPD, asthma, or other health conditions affecting the lungs. Even better — it ups our exercise tolerance, which is certainly helpful when we’re trying to lose weight.
Source: greatist.com/health/breathing-exercises-for-weight-loss