HARVARD SCIENTIST REVEALS The Surprising Secrets To AGE IN REVERSE | David Sinclair & Lewis Howes

He says his lab and others have found ways to measure an internal “clock” and that they have a gene therapy that can reset it so cells behave younger again; he adds it might one day be delivered as a pill.

He says the hurdle is “entropy” and a “loss of information,” comparing biological aging to information corruption like scratched DVDs; he sees brain-uploading as far beyond current capability because of the brain’s complexity.

He argues lifespan extension mainly means more years in a youthful, disease-free state, not simply prolonging a frail end-of-life period; he describes animal studies where longevity interventions extend healthier midlife and reduce disease burden.

He describes hunger/fasting as turning on protective pathways—immune effects, DNA repair, clearing old proteins, and mitochondrial rejuvenation—and says the best results often come from “pulsing” stress and then resting, citing mouse work where resveratrol every second day performed best in that context.

He describes autophagy as cellular recycling that helps clear sticky, damaged proteins, and says his reading suggests three days of fasting activates an additional process called chaperone-mediated autophagy (CMA), which he links to mouse health/lifespan work by Anna Maria Cuervo.