The appeal is in the young subjects' joy in their own energy and abilities.

There was a mean of 50 years age difference between the 22 young subjects and the 28 old subjects studied.

But the effect was much more prominent in the over-50 group than in the younger subjects.

Robbins has a lot in common with her young subjects.

In terms of exercise older people were more likely to report activity such as gardening while younger subjects suggested active sports.

Time isn't something that Henry can give his young subjects, however.

Here the male subjects, young and buffed, appear to have worked hard at working out.

So I was right about younger subjects surviving better.

With a few notable exceptions, the policy should be similar to that advocated for younger subjects.

For their part, the researchers who conducted the study say they intend to follow up with their young subjects.