Also (some of this info in my thread about prostate issues):
In high school I was a runner - cross country and mile. I looked for books by respected coaches and came across Percy Wells Cerutty of Melbourne. Two of his athletes were big - John Landy, the second 4 minute miler and Herb Elliot - 1960 Olympic 1500 meter champ - broke his own 1500 world record there, almost unheard of to set a world record at the Olympics in that race, earlier broke the mile record by almost 3 seconds, that hadn't been done, that large of an improvement over the previous record, for 60 years.
One of Cerutty's lines has stuck with me and I would have done well to heed it much better than I often have: 'eat only when summoned by the angel of hunger.' Too often it's: time for lunch, better eat now or I'll be hungry later. Just a lot of eating by schedule, not by what my body is saying.
He also spoke of the people wanting the feel of a full tummy, saying it was dangerous as we got older. I'm trying to enjoy the feeling of being stomach-growling hungry. It means my next carefully laid out meal - good combinations - will digest with great ease and comfort.
Here's my man Percy at about age 67 training with Elliott at Portsea, near Melbourne:
