Another Aerobic exercise good for old age news item

[summerdays]

On the BBC website the following:
http://news.bbc.co.uk/1/hi/health/7554293.stm
says that Running slows the rate of aging, in a study over 20 years.

At the beginning of the study, the runners ran for about four hours a week on average. After 21 years, their weekly running time had reduced to around 76 minutes, but they were still seeing health benefits from taking regular exercise. Lead author Professor James Fries, emeritus professor of medicine at Stanford, said: "The study has a very pro-exercise message. If you had to pick one thing to make people healthier as they age, it would be aerobic exercise.

and

Figures show more than 90% of people in the UK over 75 fail to meet international guidelines of half-an-hour moderate intensity exercise at least five times a week.

I have to admit I can't image my parents do half an hour moderate exercise....