this is from copen haigan heart study.y realized that if you are jogging for an hour and-a-half to two hours a week, you can increase your life expectancy by 6 years and reduce death 44%. it increases good cholesterol, hdl, increases oxygen intake and insulin sensitivity against diabetes. it's a great thing. hopefully, the weather will be nice and you can go out and do it. >> jamie: endorfins, too? >> and dope mean, the good hormones in the brain. it decreases inflammation throughout the body and the body's attempts to clot. it is really, really good for you exercise. what is really exciting, we are talking 1 to 2 1/2 hours a week. everybody out there can do that. that's 15, 20 minutes a day on a treadmill. if you can't jog, even walking is good for you. you have to do something. >> have you to do exercise. >> the question that comes up, mark, you have to learn how it jog. some people really over-do it and they can damage the joints. the kneesism you know, that's a great point t. speaks to another point, which is that exer

hundreds gathnerd copen haguen to watch the buildings implode.re originally built in the '50s, but recently were deemed unsafe to live in. they certainly are now. >>> there are more than 300 speed and red light cameras around the d.c. metro area resulting in thousands of tickets every month. tonight, liz crenshaw has discovered an expensive problem when speed cameras flash on a leased car. >> it's bad enough getting a red light camera or a speed camera ticket in the mail. what if your tickets don't make it to your mailbox and the penalties for not paying add up. it's happening all over the country to drivers who lease their cars. turns out their tickets to nowhere. >> whatever system they have for getting these tickets to you is obviously broken. >> jacob lesser got a letter telling him to call the police department. >> and this woman from the police department told me that there were a number of unpaid speed camera tickets on my registration. >> reporter: a year and a half's worth of speed camera tickets. >> but it turns out almost all of them w