Add 'Blood in your Veins isn't Blue - this is why it's all the Time Red'

5 days ago · da72862623
1 changed files with 1 additions and 0 deletions
--- a/Blood-in-your-Veins-isn%27t-Blue---this-is-why-it%27s-all-the-Time-Red.md
+++ b/Blood-in-your-Veins-isn%27t-Blue---this-is-why-it%27s-all-the-Time-Red.md
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+<br>If you buy through hyperlinks on our site, we could earn an affiliate fee. Here’s how it works. Human blood is crimson because of the protein hemoglobin, which contains a crimson-coloured compound known as heme that's crucial for carrying oxygen through your bloodstream. Heme incorporates an iron atom that binds to oxygen