Citation: http://www.straitstimes.com/BreakingNews/TechandScience/Story/STIStory_821016.html
Is it because smokers feel stresses and try to relieve them by eating a lot?
We have to estimate how much stress we would feel when we start or quit something which is expected to arise stress.
In addition to the example given in the article, I've heard an awful example. My father's friend's daughter got weight because she had felt stress by studying harder and had eaten too much food.
Mental health seems to affect our physical health.
