I fought it back, concentrating on my breathing, and forcing myself to at least try to relax.

'You nearly died then,' Brooke told herself concentrating on her breathing.

She spent a few seconds concentrating on her breathing.

While you are lying there concentrate on your breathing.

He had to turn away and concentrate on his breathing for a moment.

We closed our eyes again, and concentrated on our breathing.

The Shadow submerged, concentrated on his shallow breathing, and came up far out of range.

Maybe he should concentrate on his breathing - or at least the air he was taking in.

"Let's catch up with the captain," Paris said, concentrating on his breathing.

He concentrated on his breathing, slowing and deepening it all the more.