I am in your age group and I am the fittest and healthiest I have ever been due to a wake up call about 10 years ago. And no, it did not take me 10 years to do it. The best advice: use both diet AND exercise. And it is NEVER too late to start exercising just start slow.
You need them both to be healthy. And for exercise you need to do cardio (walking and such) as well as strength training to develop and maintain strength as well as balance. Avoid falls! Stretching is also great.
The Fitness and Nutrition Trackers are great for this. The latter will often surprise you: what you thought was a healthy recipe is actually way too full of fat, sodium, ... There are also lots of exercise resources available too.
Edited by: COUZCAT at: 4/2/2011 (11:09)