Heart rate variability is integral to the science of breathing. As we breathe in, our heart rate accelerates. As we breathe out, it decelerates. That produces the variations in the interbeat interval that we call heart rate variability.<\/p>\n
Breathing is almost unique among the bodily functions. It can be voluntary or involuntary with each controlled by different parts of the brain.<\/p>\n
How we breathe has an impact on our state of mind, our calmness, and also our health. We are all familiar with the idea of taking a deep breath before having to make a speech, or do something that might elevate our levels of anxiety.<\/p>\n
As it turns out, there are even more scientific methods of dealing with stress, and there are research papers[1]<\/sup><\/a>Brief structured respiration practices enhance mood and reduce physiological arousal<\/a><\/span><\/span>