Why is breathing always used for Mindfulness?

Why do we focus on our breathing when it comes to mindfulness? You can’t escape breathing. It is mindboggling how often we breathe. We might as well be mindful of doing so. Think of these mind-boggling statistics You breathe about 16 breaths a minute. 23, 000 breaths a minute8.5 million breaths a year. Say WHAT? I told you it was mindboggling! Breaths are part of our Autonomic nervous system, which means it does it on its own. This is good because if we had to focus on i...