Intelligent Medicine Radio for July 27, Part 2: Knee Replacement Alternatives

When can an astute dermatologist deliver a lifesaving diagnosis? A lifelong athlete seeks an alternative to a knee replacement; Nearly half of all U.S. deaths avoidable via easily-implemented lifestyle changes; The hazards of secondary cigarette smoke; Solutions for acid reflux; Fish oil scores vs. cardiovascular disease; The verdict on a new drug for essential tremor.