Being in China is amazingly an stressful experience for new expats. Small flats, nothing in English, no jobs for English speakers - the spouses go crazy, get depressed, have temper tantrums. Alcoholism, disorder, and marital issues - you name it.
Plus there's culture shock. Learning when 'yes' means 'no' can be confusing for the average Westerner, accustomed to a different social etiquette.
Interesting that these insights come from the China Daily, not usually known for its cross-cultural perspective. Read all about it in the China Daily