Benefits of Rhythmical Qigong Breathing Through The Nose

**** Benefits of Rhythmical Qigong Breathing Through The Nose ***

Rhythmical Qigong breathing can activate the brain's  delta/theta waves via the nose's G protein-coupled odorant receptors in the mechanosensory ion channels of the local cells. http://www.pnas.org/content/112/2/590.full.pdf
And then,  trigger the thalamic dopamine neurons and turn on the hypothalamus-pituitary--gonadal (testicular/ovarian) axis via cyclic nucleotide-gated (CNG) cation channels.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC26527/
http://physrev.physiology.org/content/82/3/769.long

According to https://en.wikipedia.org/wiki/Delta_wave :
Delta waves can arise either in the thalamus or in the cortex. When associated with the thalamus, they are thought to arise in coordination with the reticular formation.[7][8] In the cortex, the suprachiasmatic nuclei have been shown to regulate delta waves, as lesions to this area have been shown to cause disruptions in delta wave activity. In addition, delta waves show a lateralization, with right hemisphere dominance during sleep.[9] Delta waves have been shown to be mediated in part by T-type calcium channels.[10] During delta wave sleep, neurons are globally inhibited by gamma-aminobutyric acid (GABA).[11]

Delta activity stimulates the release of several hormones, including growth hormone releasing hormone GHRH and prolactin (PRL). GHRH is released from the hypothalamus, which in turn stimulates release of growth hormone (GH) from the pituitary. The secretion of (PRL), which is closely related to (GH), is also regulated by the pituitary. The release of thyroid stimulating hormone (TSH), is decreased in response to delta-wave signaling.

http://www.pnas.org/content/112/2/590.full.pdf
(Significance:
Mechanical stimuli (pressure, shear stress, membrane stretch,
etc.) are a basic form of stimulation that can induce physiological
responses in many body organs (skin, muscle, ear, lung,
airway, kidney, blood vessels, etc.). The current dogma in
sensory systems is that mechanical stimuli are mainly transduced
by force-gated ion channels. Our study reveals a previously
unidentified cascade for mechanotransduction in neurons
and suggests that G protein-coupled receptors may have an
overlooked function as mechanical sensors. This finding establishes a molecular mechanism through which the nose sends an afferent signal of breathing to the brain to facilitate integration of orofacial sensation and synchronize delta/theta-band activity in certain brain regions with respiration.)

For more dopamine information:  http://www.jneurosci.org/content/23/8/3145.full.pdf+html
http://www.nature.com/aps/journal/v31/n9/full/aps2010105a.html