These samples were run through a mass spectrometer - a device that effectively measures all the masses of the chemical compounds in the breath.

BBC: Exhaled breath is unique fingerprint

When I sat down to meditate this morning, relaxing a little more with each out-breath, I was successful in letting all my concerns drift away.

FORBES: If You're Too Busy to Meditate, Read This

In the sudden darkness, he heard a low, heavy sound, like breath, all around him, a single, deep rumble that strung his veins together and spread through his skull.

NEWYORKER: The Tiger��s Wife

Just a few years ago, the twin blocs of countries in favour of and opposed to whaling slung verbal darts at each other all week long with barely a pause for breath.

BBC: Whaling: Voting, yes or no?