Hitting the age of 100 need not mean you quit work or stop pacing the fairway, according to a Japanese government survey released on Tuesday. A 100-year-old woman farmer who modeled in an advert and a 99-year-old man who plays golf regularly are picked as examples of active old age in a Health Ministry report on the country's centenarians. The report also says the number of people aged 100 or over hit a record high this year -- a sharp reminder of the graying of Japan's population. Birthrates are tumbling, raising concerns that pension obligations could become unmanageable. The number...