Is personality related to heredity, constellation and blood type?

Indeed, scientific research has found that newborn babies show different personalities without being affected by any external environment. But it is impossible for all personalities to come from heredity, but it is possible to see anger on the science and education channel, that is to say, grandpa and dad have a bad temper, and the son's bad temper is probably related to the frontal lobe.

Personally, I think blood type and personality have a certain material basis. First of all, the oldest human blood type is O, and A, B and AB are all produced by mutation and hybridization. According to the theory of evolution, the variation can be preserved if you can adapt to the environment, and the blood type distribution has certain regionality, which shows that different blood types have geographical distribution because they have just adapted to different environments, so the relationship between blood type and personality should not be completely false.

Constellations are complex, and there seems to be no material basis now, but through some statistics, it seems that people in the same constellation do have some similarities. If the constellation has an influence on personality, I personally think it is because people born at different times may have different personalities. Constellation can be regarded as a calendar symbol, and its essence is the influence of climate and season on people.