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Blood Type Personality Beliefs - JSON

Blood type personality beliefs originated from a theory proposed by Takeji Furukawa in 1927, classifying personalities based on four blood types: A, B, O, and AB. While lacking scientific validity, it is widely known in East Asia, particularly Japan, and enjoyed as entertainment and conversation topic. However, it has also caused social issues such as workplace and relationship discrimination (blood harassment).

blood type personality folk belief pseudoscience Takeji Furukawa Japanese culture East Asia

[
  {
    "code": "A",
    "slug": "blood-type-a",
    "name": "Blood Type A",
    "description": "A blood type associated with meticulous, careful, and cooperative personality traits.",
    "positiveTraits": [
      "organized",
      "responsible",
      "plan-oriented",
      "sincere",
      "cooperative",
      "attentive to details"
    ],
    "negativeTraits": [
      "anxious",
      "indecisive",
      "stress-prone",
      "stubborn",
      "introverted"
    ]
  },
  {
    "code": "B",
    "slug": "blood-type-b",
    "name": "Blood Type B",
    "description": "A blood type associated with free-spirited and creative personality traits.",
    "positiveTraits": [
      "creative",
      "passionate",
      "optimistic",
      "adaptable",
      "intuitive",
      "free-spirited"
    ],
    "negativeTraits": [
      "erratic",
      "uncooperative",
      "self-centered",
      "unpredictable",
      "irresponsible"
    ]
  },
  {
    "code": "O",
    "slug": "blood-type-o",
    "name": "Blood Type O",
    "description": "A blood type associated with generous and leadership-oriented personality traits.",
    "positiveTraits": [
      "outgoing",
      "optimistic",
      "action-oriented",
      "generous",
      "pragmatic",
      "leadership qualities"
    ],
    "negativeTraits": [
      "stubborn",
      "self-centered",
      "jealous",
      "careless",
      "short-tempered"
    ]
  },
  {
    "code": "AB",
    "slug": "blood-type-ab",
    "name": "Blood Type AB",
    "description": "A blood type associated with calm and rational personality traits.",
    "positiveTraits": [
      "calm",
      "rational",
      "well-balanced",
      "empathetic",
      "adaptable"
    ],
    "negativeTraits": [
      "indecisive",
      "dual-natured",
      "mysterious",
      "critical",
      "moody"
    ]
  }
]