Exercise is vital for health/longevity, as is the fuel/nutrition you place into your body, along with fresh air, ample rest and sleep, freedom from stress, and pure water. Hygiene, both personal and environmental are also of vital importance in longevity markers.
It is only in recent years that Mainstream has twigged onto the idea that all the elements for health provided by Nature are of equal importance, and what was endorsed by alternatives many decades ago, is now catching on. The body is after all a holistic organism and if treated as such, reaps good health and freedom from disease, especially chronic diseases such as cancer.
If you are unable to jog yourself, then you may wish to try rebounding, which according to NASA is 68% more efficient than jogging alone.
Also the PACE exercise programme, endorsed by a Harvard Study and Dr Al Sears MD, is simply the best exercise in existence.
Aerobics and Cardio are dead............. http://www.alsearsmd.com/pace2/jvnb/
Longevity can be increased in a number of ways, and not only exercise, as evidenced by Luigi Cornaro who lived from a frugal and low calorie diet, and lived an active life to the ripe old age of 102. He did not include an exercise regimen at all................ http://drbass.com/cornaro.html
PS. DQ is not a salesman, but a health writer/researcher, so you are barking up the wrong tree on that score.