(1 min) Transcript. Dr Greger's summary: "Why do people living in Asia have lower heart disease and lung cancer rates than would be expected, given their level of smoking?"

(3 mins) Transcript. Dr Greger's summary: "Mushrooms, green tea, and soy consumption may decrease breast cancer risk, but how many mushrooms, how much green tea, and what's the best soy strategy?"

(4 mins) Transcript. Dr Greger's summary: "Within 40 minutes of green tea consumption, we get a boost in antioxidant power in our bloodstream, and, within 60 minutes, an upregulation of DNA repair."

(6 mins) Transcript. Dr Greger's summary: "A mixture of results have been reported using green tea to try to stop or reverse the progression of oral cancer, lung cancer, cervical cancer, and colon cancer."

(3 mins) Transcript. Dr Greger's summary: "Using the cooked meat carcinogen PhIP to turn normal breast cells cancerous, researchers explore the use of green tea to interrupt this malignant transformation."

(4 mins) Transcript. Dr Greger's summary: "One third of men in their 30s may already have tiny, cancerous tumors in their prostates. How much tea would we have to drink to build up cancer-suppressing levels in our prostate tissue?"

(5 mins) Transcript. Dr Greger's summary: "Green tea is put to the test against precancerous lesions, prostate cancer, and metastatic cancer, and compared to the effects of black tea."

(2 mins) Transcript. Dr Greger's summary: "The ability of green versus white tea to protect against in vitro DNA damage caused by a cooked chicken carcinogen (heterocyclic amine)."