Jack's Wisdom
LucFasting and calorie restriction happens naturally via leptin melanocortin signaling and the effect of VDR on the IMM ECT. First principle thinking alone tells you that sunlight does this and lowers GDF15 mimicking calorie restriction. Avoiding Stress-Inducing Activities is also modulated by leptin melanocortin signaling by raising Parasympathetic signaling and controlling SNS. Sleep and recovery are increased by AM solar exposure. The sun is the best way to lower GDF15 and nothing approaches its success.