FuturismUpdated 8.13.15, 6:21 PM EDT by Jason Fuller/Enhanced HumansCan A 3-Day Fast Reset Your Immune System?/ Enhanced Humans/ MedicalUpdated 8.13.15, 6:21 PM EDT by Jason FullerFasting reduces PKA and IGF-1 levelsSeems to cause the body to clear out old cells and induce regeneration from stem cellsFasting may also induce longevity though calorie restrictionShare This Article