its long been my belief that we are all born with a preset number of heart beats,when there used up you die,so I dont see the point of vigorious exercise or anything that makes the old ticker run at high speed,although the misses and I used up a few days last night.
We have a soft toy turtle on our dashboard. He was given to me before our first long trip and his name is 'Speedster'. He has travelled many thousand of kms with us and has even climbed Uluru.