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Why Doesn't Everyone Have The Same Type Of Blood?

Not all blood is the same, you probably knew that. But what are blood types exactly and how do they work with your immune system healthily?

TestTube Plus is built for enthusiastic science fans seeking out comprehensive conversations on the geeky topics they love. Host Trace Dominguez digs beyond the usual scope to deliver details, developments and opinions on advanced topics like AI, string theory and Mars exploration. TestTube Plus is also offered as an audio podcast on iTunes.