The only proven way of currently extending life expectancy in a variety of mammals is undernourishment (not malnourishment) but requires further study to see whether it has undesirable side effects.
Long lived species have less response to famine so, according to Aubrey de Grey, not likely to have a big impact in humans.
Leonard P. Guarente on NAD, Sirtuins and Aging - Explains NAD+ synthesis is circadian, and how SIRT1 is critical in ISCs - 2016 Roy Walford lectureMore Calorie Restriction resources
Looking young means you are probably ageing slower
CR VITALITY - 30-Jun-2020
Good genes combined with healthy lifestyle choices can truly make you look youngerRead more...
Calorie restriction rejuvenates 'brain immune cells' in mice
Fight Aging! - 27-May-2020
Still one of the most reliable interventions when improving long-term healthRead more...
Dawn til dusk fasting improves blood biomarkers
Life Extension Advocacy Foundation (LEAF) - 08-Apr-2020
Small study (14 participants) with strict participation requirements, but interesting biomarker resultsRead more...