
We breathe without thinking about it, thanks to complex systems in the brain sending signals to our lungs Few people stop to think about how they breathe: through the mouth or nose Is there a difference in the quality of each method After all, either way provides oxygen to the lungs, heart, brain, etc Does it matter if your mouth is open or closed Web pages are devoted to the topic, so it's obviously not a simple question to answer Open-Mouthed Breathing When you exercise strenuously,