correlation

I love science. It allows you to say commonsensical things, but with proof. The latest non-revelation to be offered by researchers is that switching off the television does not guarantee that children will exercise. A four-year study of more than 10,000 American children ages 10 to 15 found no correlation between the amount of time spent watching television and the amount of time spent engaged in vigorous activity.

According to the study, long hours spent watching television has contributed to the obesity epidemic among children, but killing your television won't reverse the trend. Watching TV and physical exercise are not "functional opposites." If they were, everyone would be on a "no television" diet.