The breath influences the nervous system and, therefore, mental health. This page explains neuroscience basics related to breath and introduces a range of breathing practices that can influence attention, energy, and emotional regulation. Disclaimer: 3rd party videos for educational purposes only. May contain ads. See their website for their privacy policies.
You breathe all the time. It happens automatically, without effort or instruction, from the moment you are born. So, you may wonder why breathing is treated as such a big deal in stress management, therapy, and other health settings.
The difference is not whether you are breathing, but how breathing interacts with your nervous system. Breathing is one of the few bodily processes that runs on autopilot and can be influenced deliberately. That makes it a unique bridge between conscious choice and automatic survival responses. Small shifts in breathing patterns can send powerful signals to the brain about safety, threat, rest, or readiness Breathing is closely linked to the parts of the brain that regulate emotion, attention, and stress. Changes in breathing are not just reactions to how you feel—they also send signals back to the nervous system that influence emotional intensity and regulation.
The video below explains the neuroscience behind that connection, showing how different breathing patterns affect brain activity, the autonomic nervous system, and emotional responses. Understanding this relationship can make breathing exercises feel less abstract and more practical, especially if you want to know why certain techniques help with calming, focus, or emotional control rather than simply being told to try them.
Learn how some breathing techniques help calm the nervous system and reduce anxiety.
When stress, anxiety, trauma, or chronic pressure are present, breathing often becomes faster, shallower, or more restricted – sometimes without you noticing. Over time, this can reinforce a state of heightened alert, exhaustion, or emotional reactivity. Learning to work with breath is less about “doing breathing right” and more about interrupting those patterns and giving your nervous system different information.
You do not need to believe in breathwork, practice it daily, or adopt it as a lifestyle. Think of these videos as tools you can experiment with. Some may feel immediately helpful. Others may not. Your response may also vary depending on your stress level, health, history, or the demands of your day.
Breathwork is not about forcing relaxation, fixing yourself, or overriding what you feel. It is about noticing that breathing is already happening – and learning how small, intentional changes can support your body when it is under strain.
When the nervous system is in a state of hypoarousal, the body is operating below its optimal level of alertness. This can show up as low energy, mental fog, heaviness, slowed thinking, or a sense of emotional flatness.
Breathing plays a direct role in this state because slow, shallow, or minimally engaged breathing can reinforce signals of low activation to the brain. In hypoarousal, the body is not getting strong cues to mobilize or orient, and breath becomes one of the most efficient ways to change that message.
Certain breathing practices – such as slightly faster-paced breathing, fuller inhales, or rhythms that emphasize inhalation – can gently stimulate the nervous system, increase oxygen delivery, and support a rise in energy and engagement. Used thoughtfully, breath can help the body move out of shutdown or lethargy and toward a state that feels more awake, present, and capable of responding to the world.
You can learn more about specific breathing techniques by following these links: