Actually, I want to say something about personality.  Personality of the person depends upon overall looks and behaviour. Person habbit are also a part of his personality.

    & nbsp; From early childhood, when child is in the age of 3-4 yrs, his or her minds gets developing and giving a way to the life of the person. As person grows he or she get adaptive to his-her environment. If the child have good and healthy environment then he/she will be a good positive  dude (most probably) but if not able to get good environment than might be possible that he/she may not as mentally good or capable as like the child growing in the healthy environment. 

  But most important thing is the genology of the person because this factor can really efect the persons mind and way of approach towards life.