2 ms·

Or imagine breathing out through a straw

• mmkhd 5y ago
  The exercise is for breathing in. You probably could add resistance by pursing your lips but with a device results will be more reproducible. I have an Ultrabreath (made in UK) from Amazon that seems to be the simple analog equivalent if the fancy electronic device in the video. Now that I know that it might help with blood pressure I will try using it seriously. (Edit: spelling)