Clean air and green grass;
Change of mood, change of habit;
No more urge to drink.
Well, there might be other reasons for this: being careful with my limited reserves of sterling, or not wanting to outrage/alarm the various friends who are putting me up. But I really think it's mostly down to the pleasanter, less stressful environment, and the powerful sensation of growing daily healthier in this unpolluted atmosphere. In Beijing, I would drink almost every day; I would drink pretty heavily at least three or four times a week. Back here in England... I haven't drunk very much at all over the past week or so; and I'm starting to feel that I could give up altogether for a while.
Oh, but the football starts today.... Whoops!