Stand Up and Pay Attention

Sharon WildwindHere’s a short quiz for you.Thirty minutes of vigorous physical activity offsets the effects of how many minutes sitting at a computer?A. Five minutesB. Thirty minutesC. One hourD. None at allWhich is healthier?A. Watching a movie on DVDB. Watching the same movie on commercial televisionC. There is no differenceAllowing for an 8-hour sleep at night (a lot of people get lots less),