đź’ˇ Muscle = Longevity! With Dr. Anurag Singh

In this interview segment, Dr. Anurag Singh describes a study comparing 75‑year‑old Dutch individuals who have led highly active lives—regularly cycling and training for 10‑km races and half‑marathons—to age‑matched peers who are frail and sarcopenic. Muscle biopsies from the participants’ legs revealed that the top 50 down‑regulated pathways in the sarcopenic group were mitochondrial pathways, indicating impaired cellular energy metabolism. The researchers then administered a one‑month supplement of urolithin A to the frail participants, observing a restoration of those mitochondrial pathways to levels comparable to those seen after exercise. Dr. Singh emphasizes that muscle functions as a “longevity organ,” arguing that poor muscle health compromises mobility and overall metabolism, and he advocates for targeted supplementation in vulnerable older adults.










