2010
2008
How Much Sleep Do You Really Need? - Yahoo! News
by greut
Studies show that people who sleep between 6.5 hours and 7.5 hours a night, as they report, live the longest. And people who sleep 8 hours or more, or less than 6.5 hours, they don't live quite as long. There is just as much risk associated with sleeping too long as with sleeping too short. The big surprise is that long sleep seems to start at 8 hours. Sleeping 8.5 hours might really be a little worse than sleeping five.
2007
2006
The Death Clock
by geneboy & 8 others
死亡时间测算，根据BMI和生活习惯进行预测，参考单位换算：1 英尺=12 英寸=0.3048 米, 1 磅=0.4536千克
