Advocates of this idea claim that people with type A blood are calm, responsible, and suspicious; those with type B blood are openhearted, moody, easily deceived; and so forth.
Väidetakse, et inimesed, kellel on A grupi veri, on rahulikud, vastutustundelised ja umbusklikud, B gruppi kuuluvad aga avameelsed, tujukad, naiivsed jne.