Feng Jiong
"confinement"? Correct translation? Yes. First Google hit: "(CNN)The recent death of a Shanghai woman has put the spotlight on the Chinese traditional custom of "postpartum confinement," a month-long period when new mothers are put on bed rest and advised to keep warm -- even in the heat of summer." Exposure to infections was a major source of maternal death in pre-modern times, and customs that were rational in barely heated dwellings and cold-to-moderate weather are outright dangerous.