Vaastu Shastra and Biology have a close relationship. The universal, magnetic and solar energy acting in a structure are effecting the body of a man. Mental disorder or imbalance lead to spoil the health of a person. For health the vacant North-East corner surrounding the building is very effective. In the North - East corner around the house or of the house if there is rubbish toilet or septic tank exists it leads to bad health for men and children of the house. If in the South -East corner around the house or of the house there is rubbish, dirt, septic tank, toilet, well, boring or water tank it leads to bad health of women, little girls. If there is defective construction in the North -East direction it leads to chest cancer, brain cancer, headache, E.N.T. trouble, pain in teeth and possibility of attack etc. If there is faulty construction in the East Direction, it leads to pain in the left hand and shoulder, rheumatism, sprain in the right hand etc. If there is faulty construction in North direction it leads to pain in left hand and shoulder, rheumatism and sprain the left hand. If there is faulty construction in the South direction it leads to pain in the waist and thighs rheumatism, paralysis and there is a possibility off fracture in left leg. If there is faulty construction in South -West direction it leads to kidney trouble, corner of the uterus, stomach trouble, indigestion, swelling of intestine , diabetes etc.