Finally, The Straight Dope On Food & Exercise from Dr. Aiello

Q: I've heard that cardiovascular exercise can prolong life. Is this true?
A: Your heart is only good for so many beats, and that's it. Everything wears out eventually. Speeding up your heart will not make you live longer; that's like saying you can extend the life of your car by driving it faster. Want to live longer? Take a nap.

Q: Should I cut down on meat and eat more fruits and vegetables?
A: You must grasp logistical efficiencies. What does a cow eat? Hay and corn. And what are these? Vegetables. So a steak is nothing more than an efficient mechanism of delivering vegetables to your system. Need grain? Eat chicken. Beef is also a good source of field grass (green leafy vegetable). And a pork chop can give you 100% of your recommended daily allowance of vegetable slop.

Q: Is beer or wine bad for me?
A: Look, it goes to the earlier point about fruits and vegetables. As we all know, scientists divide everything in the world into three categories: animal, mineral, and vegetable. We all know that beer and wine are not animal, and they're not on the periodic table of elements, so that only leaves one thing, right? My advice: Have a burger and a beer and enjoy your liquid vegetables.

Q: How can I calculate my body/fat ratio?
A: Well, if you have a body, and you have body fat, your ratio's one to one. If you have two bodies, your ratio is two to one, etc.

Q: What are some of the advantages of participating in a regular exercise program?
A: Sorry...Can't think of a single one. My philosophy is: No Pain - No Pain.

Q: Will sit-ups help prevent me from getting a little soft around the middle?
A: Definitely not! When you exercise a muscle, it gets bigger. You should only be doing sit-ups if you want a bigger stomach. I hope this has cleared up any misconceptions you may have had.