If there is metal buried underground, isn't Feng Shui good?

If there is metal buried underground, feng shui is not good or bad, wind has nothing to do with water, but geomagnetism is seriously disturbed. Modern people have been seriously troubled by geomagnetism. As you can see, the building where people live is reinforced concrete, surrounded by all kinds of pipes and lines, which almost seriously destroys the geomagnetism. The walls of human blood vessels are covered with various blood lipid deposits. The original geomagnetism produced cutting magnetic lines to quickly cut off the deposition, so that blood flow would not remain on the blood vessel wall. Because of the destruction of magnetic force, modern people have a lot of hypertension, hyperglycemia and hyperlipidemia. This is not without reason, so it is not a good thing if metals are buried underground.