Granny, 12, reflects on aging Midori Matsuzawa Daily Yomiuri Staff Writer In Japan, turning 60--an age known as kanreki (period of completion)--is regarded as a special point in one's life, as the traditional sexagenary calendar cycle has been completed, thus marking a rebirth for the senior citizen. Chieko Yukawa was just about to turn 61 when she was invited by her daughter to spend Christmas ..