We want to keep a back healthy and fresh all the time.

The king's quest for a son was finally over, so long as Edward could be kept healthy.

But they are hard to keep healthy, especially in tropical Africa.

Walking helps to keep healthy and is good for the environment.

They are just trying to keep healthy for the long march from autumn to spring.

Many individuals, once they leave school, do too little exercise to keep healthy and to maintain good weight control.

"If we can just keep healthy, this is the first of many surprises."

Most fish can certainly be kept healthy without live foods, but they do seem to enjoy them!

People seemed to keep healthy enough on the English rationed food.

Having regular exercise is a good way to keep healthy.