Expanding further on the works studied in CC106, here is the next analect from Nick Lane’s Life Ascending: The Great Inventions of Evolution:
We may not enjoy the fact much, but we’ve recognized since the early 1920’s that going moderately hungry prolongs life. It’s called calorie restriction. Rats fed a balanced diet, but with about 40 per cent fewer calories than normal, live half as long again as their well-nourished siblings, and suffer fewer diseases of old age.