Each year, many Australians see their doctor about fatigue. Many describe it as feeling beyond exhausted. It's as if your energy is completely depleted. The fatigue is probably hundreds of times worse than your worst flu.

It’s the question many of us ask ourselves: why don’t I exercise more, eat better food and generally lead a healthier lifestyle?

For many who want to, but just can’t seem to make it happen, it turns out the answer to that question is – feeling just too tired.