I just read a brief review of a study claiming that people who spend at least  6-hours/day of their leisure time sitting die sooner than those who sit less than 3-hours/day. Over 53,0000 U.S. men and 69,000 women were followed over 14-years and, after adjusting for smoking and weight, death rate increased by about 40% in women and increased 20% in men.  The death rate increased even if those who sat for over 6-hours/day still got a decent amount of exercise during the day. Leisure time was defined as time not spent at work.  Who has 6-hours of pure leisure time during the day? Whether you do or not, this is a good reminder to get up and move.