Gerald.
My father had his first heart (angina) attach in his early 40s. After 2 heart by-pass operations and a lot of drama he finally left us three years ago at the age of 92.
Ignore what Tosh said about willpower and I'm sure you'll make it to 92 as well.
No no no, Tosh is 100% correct. I'm 20 stone now, but when I started window cleaning I was 24 stone. The change in lifestyle lost me 2 stone, that was it. I though and hoped it would be more.
About a year ago my son started Thai boxing. I used to bring him 3 times a week and sit and watch. Then about 7 months ago I started boxing myself. I've lost another 2 stone. It wasn't will power, it was heavy hard exercise and the fact that my trainer is depending on me to lose weight, she hopes it will bring more people into the gym if I'm doing well. It's not cheap and my partner is giving up things she wants so I can do this and its working. It's not will power, it's doing something I love and having people relying on me to do the right thing. If I don't loose weight I can't justify spending the cash and will have to quit something I love.
In my gym there is also a lesson in will power. There is a photo of a bigish guy on the wall. I asked about him one day and apparently he came to the gym one day at about 28 stone. Wouldn't skip, wouldn't run and so on. Eventually he got into it, lost loads of weight and became a decent boxer. Under his photo in the gym is a belt. It's an amateur world heavyweight title belt which he won in turkey a few years ago. Willpower got him into the gym, willpower trained him up and willpower won him a world title. Within a year he was dead, he went back to eating like he used to, wouldn't leave his room and died of a heart attack. His willpower didn't hold.