where should your head be when you sleep
Sleeping positions The Indian Vastu Shastra and Chinese Feng shui systems describe favorable and unfavorable geographical directions (north, south, east, west) for sleeping. Vastu Shastra suggests not to sleep towards North for people living in Northern hemisphere and not towards South in case of Southern Hemisphere. Blog by Sadhguru (Isha Foundation) quotes, "East is the best direction. North-east is okay. West is alright. South, if you must. North, the worst . 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."[7]
Cerebrum With the assistance of the cerebellum, the cerebrum controls all voluntary actions in the body.
Cerebrum The cerebrum is the largest part of the brain. Depending upon the position of the animal it lies either in front or on top of the brainstem. In humans, the cerebrum is the largest and best-developed of the five major divisions of the brain.
Time Earth is split up into a number of time zones. Most time zones are exactly one hour apart, and by convention compute their local time as an offset from GMT. For example, time zones at sea are based on GMT. In many locations (but not at sea) these offsets vary twice yearly due to daylight saving time transitions.