Science Proves Many Health Benefits of a Conscious Slow Breathing

It is observed that most of meditative and relaxing practices create psycho-physiological changes in the brain-body interaction. These changes happen as the result of slowing down the breathing frequency (less than 10 breaths per minute). What exactly is the effect of slow breathing on our health? Do various controlled breathing techniques really make a difference? If so, it can be revolutionary way to support our mind and body health because breathing is easily accessible by all of us.