Palmistry or astrology is to tell future of a person by reading lines of hand. Hand reading is common in other cultures too like Greek, Roman, Arabic, Indian, Chinese, and Japanese etc. Countries like in India hand reading is respected and can be seen easily in streets too. For many people palmistry is just related to interpretation by reading lines of the hand but everything like shape of hand, skin, and division of palm in four parts, development of thumb and fingers are all considered in palmistry.
According to palmists there is significance of each hand line and there is a name of each hand line like there is vitality line, temper line, heart line, fate line, head line, Apollo line, and health line. In all traditions of hand reading lines are formed by the flow of energy passing through the skin. A line should be of good length and should be clear from any mark. Mark if appears in lines it is not considered good. Like a clear luck line means good luck. Marks on health line means the person will not have good health in his/her life. But science has always suspected hand reading and says that lines are mere due to mechanical and due to folding of hands.
There are many marks and signs which indicate some quality or incidents are believed to happen. The length of life line indicates the life of a person. If it is short in both hands then the person will have a shorter life if it is broken in one hand and weak in the other hand it means the person will have a serious illness or a major accident which risks his/her life.
There is no scientific support that whatever palmist predict/interpret from hand lines is correct but still people believe on it and show their hands to palmist to know their future. Many of the palmists have made it a profession they see hand of people and tell about them and they charge money for it. And there are certain people too who don’t know much about palmistry but in the greed of money they lie with people and tell them false thing also by seeing their hand lines which is not good.