I find this to me so true for myself; when I'm stressed I tend to turn to comfort food; therefore, I actually find it necessary to work-out in order to keep the weight off and stress at bay;
"Forget that punishing exercise regime or elaborate diet.
The key to losing weight could be as simple as putting your feet up and relaxing.
Scientists have found a gene that makes us crave sweet and fatty foods and pile on the pounds when under stress.
The 'comfort eating gene' has also been linked to type 2 diabetes - the form of the disease that usually occurs in middle-age and is related to obesity.
It is hoped that studying the gene will lead to new diabetes drugs as well as weight loss pills.
But it seems finding time to relax could also do us the power of good.
Researcher Dr Alon Chen set out to find out why so many people reach for the biscuit tin when under pressure at home or at work.
In studies on mice, he pinpointed a gene that pumps out a protein called Ucn3 at times of stress...."
- http://www.dailymail.co.uk/health/article-1273866/High-stress-levels-make-fat-researchers-claim.html
Source: Daily Mail UK, Fiona Macrae