"A typical cardiac coherence exercise involves inhaling for five seconds, then exhaling for the same amount of time (for a 10-second respiratory cycle)," it says.

Breathing comes naturally to us all and, unless you struggle with a condition that affects your ability to breathe easily, it’s probably not something that you spend that much time thinking about.

Breathing correctly is a skill — and learning to control it can improve your health, mood and well-being. Here are a few simple exercises to help you get started.

A little miracle in your lungs Cardiac coherence isn't some esoteric new trend. It's a scientifically validated method of rhythmic breathing that directly affects your nervous system.