Very interesting article. From what I understand fasting or calorific restriction can trigger the expression of SIRT 1, an enzyme which is thought to be a metabolic master switch and can potentially extend life span. Dr. David Sinclair, an Australian scientific researcher, has discovered that SIRT 1 can also be expressed by resveratrol. NAD+ seems to activate SIRT1-7 also with potentially life lengthening results.
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Thank you for the thoughtful comment @michaelmay . That is very interesting and yet another benefit of fasting! In part two of this series I am going to tie in grhelin and CCK, two hormones involved in hunger signals in the brain, ultimately linking into ketogenic diet and how intermittent fasting can help trigger a deeper ketosis.