The Circadian Rhythm Clock Cycle Of Human Body – A Simple Decode To Human Body

A Simple Decode To Human Body

Life on earth has evolved under the influence of rhythmic changes in the environment, such as the 24 h light/dark cycle. The human body has its own rhythm called the circadian rhythm or biological clock and this controls our sleep and wakefulness. The clock works according to our exposure to light, genetic makeup and sleep patterns. Early morning light can reset our clocks and adapt their behavior and physiology accordingly. 

Know Your Nervous System

The Central nervous system consists of the brain, the spinal cord, and the body’s nerve network. This complex system is based on one kind of cell the neurons. The brain too has its own rhythm, the brain energy waxes and vains vary with time of the day. The brain rhythm depends on the levels of various hormones and follows to some extent the clock of the body. The way in which we can enhance the brain power is by orchestrating the circadian rhythm, brain rhythm and day hours to each other. By synchronizing these rhythm and timings together, life can be more efficient, productive and energized.

How Circadian Rhythm Works:

The circadian rhythm, the 24-hour cycle our body operates on, is a pretty amazing process that happens every day and this internal biological clock coordinates hundreds of cellular events that happen in the body. If you think of all the molecular, cellular, and physiological processes in the body as functioning as an orchestra, then the master circadian clock serves as the conductor to make sure processes such as sleep, hormone secretion, metabolism, body temperature, and immune function occur at the correct time of day. Most people operate within a similar time frame: Wake up in the morning and fall asleep in the evening within a range as it is the natural rhythm of the body. Then there are also differences in age. There is a natural shift in most people during the teenage years when they tend to move toward more of an evening type like nigh owls. Then as people get older, their rhythms start to shift the other way such that elderly people wake up early in the morning and go to sleep earlier in the evening like early birds.

The brain provides master central control of circadian rhythms. As soon as light enters the eye, it stimulates the retina, and signals are sent to the hypothalamus. In the hypothalamus, there are two small nuclei that are a major part of our inner clock. They send information about light, darkness, and biological time throughout the nervous system and the entire body. This process allows us to be alert and active during the daytime and fall asleep in the night. That’s why going to sleep with your smartphone will keep you up longer. The receptors in your eyes are most sensitive to short wavelength light which is emitted by the sun in the morning but also by cell phones and computer screens. This can trick your circadian clock into thinking it’s still time to stay awake and throw off the timing of internal physiology, including sleep, mood, and metabolism. Bright light—whether it’s natural sunshine or the glow emitted from a smartphone—may not seem like a big deal, but it can set off a whole cascade of reactions.

24 Hour Energy Flow Though the Meridians

Understanding how the human body works and interacts within nature, along with self-awareness are the basis of our health. The graphic shows the Circadian Clock cycle. As Energy makes its way through the meridians, each meridian in turn with its associated organ, has a two-hour period during which it is at maximum energy. The Circadian Rythm Effect is recognizable by measurable increases of energy within an organ system and meridian during its time of maximum energy.

Harmonizing our habits with this cycle would look something like this… From 5-7am, the large intestine is most active. This is the time of the sharpest rise in blood pressure. It’s best to take a few deep breaths before rising out of bed. Once out of bed, evacuate our bowels and sit to meditate. From 7-9am, the stomach is most active. The melatonin secretion stops. This is a good time to eat breakfast, take a walk and digest the morning’s meal. From 9-11am, the spleen is most active. Highest testosterone secretion of the day. This is the best time for concentration and planning. By starting our day with this schedule we would maximize both our time and productivity.

Between the hours of 11am and 1pm, the heart is most active. The body is at its most coordinated by noon. This is the best time to exercise, work and to eat our main meal. From 1-3pm, the small intestine is active. This is a low energy time of the day. Absorbing nutrients, short nap and work is best. From 3-5pm, the bladder is most active. This is the fasted reaction time of the day. Walking, working and studying are most beneficial. The kidneys are most active between 5-7pm. This is when we enjoy the greatest cardiovascular efficiency and muscle strength, highest blood temperature and highest body temperature. Exercise, outdoor activities and a light meal is best. This schedule would regulate the energy throughout the day.

The evening should be reserved for rejuvenation and recovery from the day’s activities. From 7-9pm, the pericardium or ‘master of the heart’ is active. Light reading, massaging the feet and body. The Triple Burner or Triple Heater is at high tide from 9-11pm. The body begins to release melatonin and suppresses bowel movement. Calm socializing and relaxing with friends and family is best. It is best to be fast asleep by 11pm. From 11pm to 1am, the gall bladder is most active. Releasing bile, cellular repair and blood cell renewal. From 1-3 am, the liver is most active. Deep sleep and liver/blood detox begins. From 3-5 am the lungs are most active. Deep sleep, dreams and lung detox. This is when most people tend to snore the most. Keeping to this schedule would ensure optimal health of the mind, body and spirit.

Harmonizing Habits:
5-7am – Wake Up, Move Bowels, Meditate
7-9am – Reproductive roles, Breakfast, Walk, Digest
9-11am – Work, Action Best Concentration
11am-1pm – Eat Main Meal of Day, Walk
1-3pm – Absorb Food, Short Nap, Work
3-5pm – Work or Study 5-7pm – Exercise, Light Dinner
7-9pm – Light Reading, Massage Feet
9-11pm – Calm Socializing, Flirting, Reproductive roles
11pm-1am – Go to Sleep, Cellular Repair
1-3am – Deep Sleep, Detox Liver & Blood
3-5am – Deep Sleep, Detox Lungs

Source: MindBodyExcercise.com and George Brainard, PhD, professor of neurology and director of the Light Research Program at Thomas Jefferson University.

– Manimozhi Ilango