Cracking the code behind aging has long since fascinated, frustrated and captivated scientists.  In our quest to live longer and better, a desire to fully understand the mechanisms that explain how and why we grow old, has been central to longevity research. In recent years some significant progress has been made. A clearer picture is emerging of the changes that occur, at a cellular level, that could dictate how our bodies respond to the passing years. In this episode of the LLAMA podcast, Prof. David Walker, a researcher at the University of California, Los Angeles, (UCLA) discusses his work with tiny worms and fruit flies, and explains the significance of myriad age-related issues, such as dysfunctional mitochondria, leaky intestines and inflammation. Recorded: March 2, 2021 | Read a transcript and show notes at the LLAMA podcast website.Disclosure: Prof. Walker is a member of the scientific board of JUVICELL, a sponsor of this LLAMA podcast episode. Topics covered in this interview include:Dr. Walker's academic journey from Belfast to Manchester and Los Angeles. Inspiration through  Jonathan Weiner's Time, Love Memory - a biography of Seymour Benzer, the biologist renowned for his study of genetics through experiments with fruit fly genes.  Working with nematode worms and fruit flies.  Aging - a great scientific mystery.  How our understanding of what is driving aging, at a cellular level, has evolved. Developing novel ways, using genes, to prevent age- related health decline.  Changing awareness of aging as we grow older.Accumulation of dysfunctional mitochondria and how it appears to be an important cellular hallmark of aging. The importance of autophagy for maintaining cellular health.Why do we age at different rates?  The pathophysiology of aging: How do age-related changes that affect organ function, relate to the health and viability of the aging organism? FlexBeam red light therapyRecharge Health is offering a discount on the purchase of FlexBeam, the wearable red light therapy device which targets key parts of the body to improve sleep/treat injuries/sooth aches/pains.  Sale price US$369 (down from $449) + an extra $10 off use code equinox  Sale ends Sept 21: 0259 PST DoNotAgeDoNotAge.org is offering listeners to LLAMA a 10% discount on its range of products – NAD boosters, Sirtuin activators, senolytics and more.  Any health queries can be answered by emailing the team at hello@donotage.orgUse the code LLAMA at checkout. - Time-line Mitopure (a highly pure form of Urolithin A) boosts the health of our mitochondria – the battery packs of our cells – and improves muscle strength. Time-line is offering LLAMA listeners a 10% discount on its range of products – Mitopure powders, softgels & skin creams.  Use the code LLAMA at checkout-Support the showThe Live Long and Master Aging (LLAMA) podcast, a HealthSpan Media LLC production, shares ideas but does not offer medical advice. If you have health concerns of any kind, or you are considering adopting a new diet or exercise regime, you should consult your doctor.