Earth is a giant magnet and our body has its own magnet field too. When you sleep in north south direction, based on the magnetic theory, our body becomes completely asymmetrical with the earth’s giant magnetic field. It raises the blood pressure and puts the heart in a hard to pump state. In addition, it leads to the deposition of iron content in the brain area. This can result in the serious illnesses like brain degeneration, headache, Cognitive Decline, Alzheimer’s disease and Parkinson disease.