Earth's magnetic field has a great influence on living beings and other energies.
The ocean tides varies due to the energy field variation during lunar cycles i.e from new moon to full moon.
The Human Body is a magnet with the Head, the heaviest and most important part of the body, corresponding to the North Pole. If the head is directed towards the Earth's North Pole while sleeping, the two North Poles will repel each other causing tension, disturbed sleep and other related health problems. Brain responds to the magnetic field and has a correlation between increased geomagnetic activity to the increased suicide rates/ clinical depression.Hence, one should never sleep with the head in the North. Instead the bed should be in the East-West axis.