Blood is the red liquid that flows through your body and each of us have about 9-12 pints in us. Today we're taking a deep dive into the science of blood: what it's made of, what it does, and why it's so bloody important. ____________________ Sources: Blood Facts And Statistics https://www.redcrossblood.org/content/redcrossblood/en/donate-blood/how-to-donate/how-blood-donations-help/blood-needs-blood-supply.html Researchers closer to being able to change blood types https://www.sciencedaily.com/releases/2015/04/150429132926.htm Innate immunity: the first line of defence https://blogs.scientificamerican.com/lab-rat/innate-immunity-the-first-line-of-defence/ ____________________ Follow Trace on twitter: http://twitter.com/tracedominguez Follow Seeker on twitter: http://twitter.com/seeker And, subscribe on YouTube too: http://youtube.com/seeker Seeker inspires us to see the world through the lens of science and evokes a sense of curiosity, optimism and adventure. Visit the Seeker website for more science coveragehttps://www.seeker.com/  Learn more about your ad choices. Visit podcastchoices.com/adchoices