一度慣れたら一生直しにくいこともある。体質になると、楽でなくても、よくなくても、悪くても、それが楽だからだ。
There are things that are difficult to fix for the entire lifetime once they get accustomed in the wrong way. The reason is because once something becomes the constitution/the way things are, it is comfortable even if it is uncomfortable, bad, and unpleasant.
photo:「smorking」by adoon Lanna Thai art from flickr