Myth 1: Sleep is a time when your body and brain shut down for rest and relaxation
No evidence shows that any major organ (including the brain) or regulatory system in the body shuts down during sleep. Some physiological processes actually become more active while you sleep. For example, secretion of certain hormones is boosted, and activity of the pathways in the brain needed for learning and memory is heightened. To sleep better you must get rid of many sleep myths including this one and only accept the sleeping facts!
Myth 2: Getting just 1 hour less sleep per night than needed will not have any effect on your daytime functioning
This lack of sleep may not make you noticeably sleepy during the day. But even slightly less sleep can affect your ability to think properly and respond quickly, and it can compromise your cardiovascular health and energy balance as well as the ability to fight infections, particularly if lack of sleep continues. If you consistently do not get enough sleep, eventually a sleep debt builds up that will make you excessively tired during the day.
Myth 3: Your body adjusts quickly to different sleep schedules
Your biological clock makes you most alert during the daytime and most drowsy at night. Thus, even if you work the night shift, you will naturally feel sleepy when night time comes. Most people can reset their biological clock, but only by appropriately timed cues