This mindfulness exercise is a simple one, but it can be very effective.

This doesn’t involve counting or holding your breath, it’s simply focusing on your breathing, in and out, but actually taking notice, and acknowledging it.

This can be done anywhere, but is best when sitting or lying down comfortably and relaxed.
You can close your eyes, if you’re somewhere relaxing, then take a normal slow breath in, but take note of your chest expanding as you do it, then slowly breathe out, taking notice as the air leaves you.

You can continue repeating this as long as you wish.

It can be useful during an anxiety attack, to help get your breathing back to a normal steady rate, but it can be used at any time, to refocus and help bring you back to the present moment.