This is the oldest blood type, reflecting the lifestyle of humans during the primitive era and is the most common today. People with this blood type are often strong, confident, direct, decisive, and steady. They are patient, idealistic, sensual, logical thinkers, and have a strategic mind. With a natural inclination to lead, they constantly seek fame, are outgoing, and occasionally prone to jealousy.
People with Blood Type O should work according to a pre-planned daily schedule, avoiding impulsiveness and whim. Suitable careers: bank teller, investment broker.