The emergence and spread of virulent strains of avian influenza has been attributed by experts to the intensely overcrowded, unsanitary, and stressful conditions that often characterize large-scale factory farming in industrialized agriculture.
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Other Quotes by "Michael Greger"

You can actually take people with these precancerous lesions, and basically paint black raspberries on them, and they nearly vanish.
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Among identical twins who have the exact same genes, one may die early of a heart attack and the other may live a long, healthy life - depending on their lifestyle and what they eat.
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A good way to adjust to a healthier diet is to think of three meals you enjoy that are largely plant-based. Pasta with tomato sauce can be tweaked to whole-grain pasta with added vegetables.
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Tobacco smoke contains chemicals that weaken the body's immune system, making it more susceptible to disease and handicapping its ability to destroy cancer cells.
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Though pigs have been proven susceptible to a porcine spongiform encephalopathy, the National Pork Producers Council claims that no naturally occurring cases of 'mad pig' disease have ever been discovered.
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