Walking is the simplest and maybe the best exercise for the lower back.

Then you need to start walking: it's the best exercise for the cardiovascular system.

Many exercise experts say that walking is one of the best exercises.

Here are the four best exercises for strengthening your calves.

The best exercise in understanding it is one sometimes given high school kids.

If you are starting to get in shape, one of the best exercises is walking.

But it's one of the best exercises for knee arthritis.

"People are always asking me, 'What is the best exercise?' "

"Standing still is one of the best exercises," he said.

Walking is the simplest and perhaps the best exercise for the low back.