Small changes in our lifestyle in terms of diet and exercise can add years to our lives, we are told.

Might it be a good idea to walk to and from the gym, where many pay for their exercise and use petrol in the process?

They may save money and make an extra contribution to the reduction of global warming with similar results.

The price of petrol and membership of exercise clubs might also go down with reduced demand.

Lower transport costs also affect many other costs and prices.

I should use the same reasoning about my own lifestyle, you may rightly point out!

My wife, Sylvia, would agree wholeheartedly.

George Appleby,

Clifton,

York.

Updated: 08:48 Monday, May 01, 2006