Why Do Bruises Change Colors?

The video humorously explores what happens when someone walks into a bar and gets a bruise. It explains the science behind bruises, detailing how they form due to broken capillaries and the subsequent leakage of blood. The video describes the progression of bruise colors from red to blue, green, yellow, and brown, as the body breaks down hemoglobin and reabsorbs its components. The process involves various compounds like heme, bileverdin, and bilirubin, with the final stages leading to the bruise's disappearance.

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