Research on Breath

Mounting scientific research continues to
suggest that health, quality of life, and
even the very length of life, are all profoundly
affected by our mental and emotional states.
The emerging field of mind/body medicine
explains how our thoughts and emotions can
powerfully affect brain, endocrine (hormone),
and immune system function. This influence
is facilitated by chemical messengers called
neuropeptides, which are released with one’s
every emotion. They are rapidly picked up by
cells in the immune, endocrine, and autonomic
nervous systems, and directly affect their
functioning.

from
http://www.aolresearch.org/research_symmary.html