Podcast Episode #59: Should You Stop Exercising In Polluted Areas?

29 Jan 2026 · 9 min
Episode

29 Jan 2026 · 9 min

0:00

Ben Greenfield's podcast episode (Oct 24, 2011) is a Cape May–recorded listener Q&A covering practical endurance and health topics. He announces upcoming interviews (heart CT scans with Dr. William Davis; soil remineralization with Dr. Winston Cow), a triathlon camp, and a video by Dr. Carolyn Dean. Main Q&A topics: strategies to recover from overtraining (sleep, targeted supplements, topical magnesium), safely losing muscle mass for triathlon (max ~1 lb muscle loss/week ≈3,500 kcal/week → ~500 kcal/day deficit; use bike rides fuel-depleted), race tapering across many events (prioritize races; vary tapers 40–80% volume while keeping intensity high), maintaining running fitness during injury (aqua jogging 15–20 min minimum; 30–40 min for half-Ironman fitness; cues for technique), definition and sources of processed/refined sugars (white sugar, HFCS; hidden in yogurt/cereal; check labels for sucrose, HFCS, maltodextrin), leg vs lung fatigue (muscle damage, recovery tactics: cold exposure, nutrition, massage, active recovery), detox concepts (body does detox naturally; gentle ongoing cleanses + diet/supplements can help), juicing tradeoffs (nutrient concentration vs loss of fiber/caloric density), and exercising in polluted cities (risks from CO, NOx, ozone; avoid rush hours, use indoor training, consider masks like Respro, HEPA filters at home).

Questions this episode answers

877-209-9439

Shape 21 book DVD package (approx. $47 value)

About 1 pound of muscle per week (~3,500 kcal deficit/week; ~500 kcal/day)

About 1,000 mg per day

About 100–103°F (approx.)

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