Every Blood Type Explained Simply

Why do humans have different blood types — and what actually makes A, B, AB, and O different? In this video, we break down all eight common blood types: A+, A−, B+, B−, AB+, AB−, O+, and O−. You’ll learn what the letters and positive or negative signs mean, how blood types affect transfusions, why some blood types can donate to more people than others, and what makes types like O− and AB+ so unusual. Blood might look the same at first glance, but tiny differences on the surface of your red blood cells can completely change who can safely receive it. Subscribe for more simple explanations of the strange systems keeping your body alive every day. #BloodTypes #HumanBody #ScienceExplained #Biology #BodyExplained