I inhale positive energy and exhale my fears.

The out-breath is the half that does the work. Slow it down and the heart rate follows within a few seconds. No belief required, no technique to master, nothing to buy. Which is worth knowing on a day when your mind is not accepting suggestions — sometimes the shortest route to a steadier thought runs through the body rather than around it.

Six seconds out, longer than in, four times over. It won't solve the situation. It lowers the volume enough to think about the situation, and that is usually the part that had gone missing.