human body has its own magnetic field (Also known as hearts magnetic field, because the flow of blood) and Earth is a giant magnet. When we sleep with head towards north, our body’s magnetic field become completely asymmetrical to the Earth’s Magnetic field. That cause problems related to blood pressure and our heart needs to work harder in order to overcome this asymmetry of Magnetic fields. Apart from this another reason is that Our body have significant amount of iron in our blood. When we sleep in this position, iron from the whole body starts to congregate in brain. This can cause headache, Alzheimer’s Disease, Cognitive Decline, Parkinson disease and brain degeneration.
When the body is positioned horizontally, you can immediately make out that your pulse rate drops. The body makes this adjustment because if blood is pumped at the same level, too much will go into your head, causing damage. Now, if you place your head to the north and stay that way for 5 to 6 hours, the magnetic pull will cause pressure on your brain. If you are beyond a certain age and your blood vessels are weak, you could have hemorrhages and paralytic strokes. Or, if your system is sturdy and these things don’t happen to you, you could get up agitated because there is more circulation in the brain than there should be when you are sleeping. It is not that if you do this for one day, you will fall dead. But if you do this every day, you are asking for trouble. What kind of trouble depends on how strong your system is.
So, which is the best direction to sleep with your head pointing towards? East is the best direction. North-east is okay. West is alright. South, if you must. North, no. This is true as long as you are in the northern hemisphere – sleeping with your head towards any side except north is okay. In the southern hemisphere, don’t put your head to the south.
