Circadian Rhythms

Human beings are not nocturnal animals by nature.  We can adapt somewhat to being awake at night and sleeping during the day but it is against our nature.  This natural cycle is known as the circadian cycle or the biological clock.  Regardless of what it is called it does more than just make us tired at night.  It is also responsible for our blood pressure, body temperature, digestion, hormone releases, and heart rate.

The circadian cycles get there timing from exposure to light and dark which naturally occurs on a  24 hour cycle.  It has times of high energy expulsion and times of low energy expulsion.  The low times are at night between  midnight and 6 a.m. and between 1:00 p.m. and 3:00 p.m. When the circadian rhythm is in allow point the driver’s metabolism slows down, he is less alert and fatigues begins.

People require 7 to 8 of uninterrupted sleep every 24 hours. This should be high quality sleep.  High quality must be in a calm environment, it must be continuous and it is best done at night between 10:00 p.m. and 7:00