This animation shows a comparison of the change in BMI for a given height and varying weights. It also shows why BMI is inaccurate for muscular people. This animation includes audio narration. Body Mass Index, or BMI, is a commonly-used measure of obesity. The animation shows a range of weights at a given height (5' 10"), and shows the points at which a person is classified as "overweight" or...

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An overview of the human mammary gland with a focus on the role of breast stem cells during pregnancy. The primary function of the mammary gland is to produce milk to nourish young offspring. The mammary gland is comprised of three main cell types; alveolar, ductal and myoepithelial cells. During pregnancy, the mammary gland increases in size due to the action of breast stem cells, which can...

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This segment shows how Dr. Judah Folkman gained his insight of angiogenesis, and how the biological field disagreed the existence of angiogenesis. This is Part 2 of a 8 part series (http://www.pbs.org/wgbh/nova/cancer/program.html) that introduces a possible non-toxic cancer treatment and highlights the long journey of how angiogenesis (new blood vessel growth) was discovered, how most...

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This segment illustrates how Dr. Judah Folkman designed experiments to provide solid proof of angiogenesis' existence, and the further identification of angiogenesis factors. The identification of angiogenesis factors was so time consuming (it took several years of effort) that even Dr. Folkman doubt whether this factor existed. The quote from Dr. Folkman: "In research, there's a very fine line...

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This segment shows the other approach of searching and identifying angiogenesis inhibitors. This is Part 5 of a 8 part series (http://www.pbs.org/wgbh/nova/cancer/program.html) that introduces a possible non-toxic cancer treatment and highlights the long journey of how angiogenesis (new blood vessel growth) was discovered, how most scientists thought angiogenesis as ridiculous, how...

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