We Describe Blood Types in this this video:

0:00 O-negative blood type
0:37 O-Positive blood type
1:20 A-negative blood type
1:52 A-positive blood type
2:35 B-negative blood type
3:03 B-positive blood type
3:31 AB-negative blood type
4:06 AB-positive blood type

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___DISCLAIMER___
Do not rely solely on this video for information. It's intended for entertainment and educational purposes, so some details may be simplified or inaccurate. The main aim of this channel is to inspire curiosity and encourage you to explore these topics further on your own.
(Just a reminder: I'm not a doctor or psychologist).