How Nasal Breathing Can Protect You From Getting Sick
Breathing is something we do every minute of the day, often without much thought. However, the way you breathe can significantly affect your health, especially when it comes to protecting yourself from illnesses. Drawing insights from neuroscientist Dr. Andrew Huberman, this blog explores the substantial benefits of nasal breathing over mouth breathing and how this simple practice can enhance your immune protection.
Understanding the Impact of Breathing on Health
Dr. Andrew Huberman, a renowned neuroscientist and professor at Stanford University, emphasizes the profound impact of breathing techniques on overall health and neurological function. Breathing is not only essential for oxygen exchange, but it also plays a pivotal role in regulating nervous system responses and immune function.
Nasal Breathing vs. Mouth Breathing
There are two primary ways we breathe: through the nose or through the mouth. While mouth breathing is common, especially during intense physical exertion or when nasal passages are blocked, it is not the optimal way to breathe for prolonged periods. Here’s why nasal breathing is superior, especially in the context of immune health:
Filtration of Pathogens: Nasal breathing naturally filters airborne particles, including pathogens. The nasal passages contain fine hairs and mucus membranes that trap dust, allergens, and microbes, preventing them from entering the lungs. Dr. Huberman points out that this filtration system is bypassed when breathing through the mouth, increasing the risk of respiratory infections.
Production of Nitric Oxide: The nasal cavity produces nitric oxide, a critical molecule that plays several roles in human health. Dr. Huberman highlights that nitric oxide enhances the body's ability to transport oxygen throughout the body, but it also has potent antimicrobial properties. It can help kill bacteria, viruses, and other pathogens, reducing the risk of infections.
Regulation of Blood Flow and Oxygen Uptake: Nasal breathing regulates the volume of air intake and helps maintain optimal blood CO2 levels, which enhances the oxygenation of tissues. Dr. Huberman notes that this regulation supports the immune system’s ability to respond more effectively to potential threats.
Lower Stress Levels: Nasal breathing is linked to lower stress levels as it influences the parasympathetic nervous system, promoting relaxation and reducing stress. Chronic stress is known to suppress immune function, so by nasal breathing, you are indirectly supporting your immune health.