I have the world's first heat seaking guided missle -a Whippet! (Actually, they say that owners will eventually look like their dogs, so I bought a whippet as I needed to lose some weight!)
Trouble is he's a sprinter -all out for 10 tosses of the aroebe disc and then he's spent.
When I started my jogging experience 10 years ago, I weighed less than I do today. I couldn't jog a continuous mile (I was even on my college track team -read 'field events'). I went from 11/12 minute miles down to 3 miles at just over 6 minutes per mile. I really really enjoyed that.
As I said I weigh more now, but am very comfortable -no aches and pains (I'm relatively young yet), I attempted to beginn jogging last year (didn't want to stick withit) and I was able to complete a continuous mile in around 10 1/2 minutes -far better when than when I was in 'shape' just after college.
Jean