Spring brings new life, summer fosters growth, autumn yields a harvest, and winter is a time of storage; as yin and yang alternate, Traditional Chinese Medicine holds that all things in the world are not isolated entities, but form a single whole, in which humankind and nature exist in harmonious unity and interact with one another.
Spring brings new life, summer fosters growth, autumn yields a harvest, and winter is a time of storage; as yin and yang alternate, Traditional Chinese Medicine holds that all things in the world are not isolated entities, but form a single whole, in which humanity and nature exist in harmonious unity and interact with one another.
The changing of the seasons and the cyclical movement of the Five Elements constitute a complete cycle, and are among the most powerful natural laws governing the universe.
As the ancients said, ‘Check the imperial almanac before going out; maintain one’s health by following the seasons.’ They divided the day into twelve shichen. Living in accordance with the rhythms of these shichen constitutes a purely natural approach to health preservation, in keeping with the Daoist philosophy of ‘the unity of Heaven and Man’ and ‘going with the flow of nature’. It also represents the greatest wisdom of the Chinese people: the medicine of time.
I’m sure you’ve often heard these sayings:
‘Don’t linger in bed in the morning; eat breakfast on time.’
‘Have a nap after lunch; you’ll feel more energetic in the afternoon.’
‘Don’t work late into the night; your health is your most valuable asset.’
These are by no means idle words. You should know that, in Traditional Chinese Medicine, the 24 hours of the day—divided into twelve shichen—correspond to specific periods of activity for the five zang organs and six fu organs. If one can consciously align with this rhythm—nurturing the corresponding organs during each hour, maintaining a regular routine and practising health preservation scientifically—one can achieve the dual benefits of strengthening the body and maximising the effectiveness of one’s health regimen.
Today, Xiao Ai will guide you through this wisdom passed down by our ancestors. The content is incredibly comprehensive, so I recommend bookmarking this for future reference!
I. Chinese Body Clock The Hour of Zi – Relieving the Burden on the Gallbladder
The Hour of Zi refers to the period from 11.00 pm to 1.00 am the following day, when the Gallbladder Meridian is in charge. (‘In charge’ here means ‘on duty’.)
There is a rather peculiar phenomenon in daily life: after dinner, we tend to feel drowsy around 8 or 9 o’clock, but by 11 o’clock we are wide awake again. That is why many people nowadays are in the habit of starting work after 11 o’clock.
There are also those who, come 11 o’clock at night, always feel the urge to eat something and end up rummaging around the house for a snack. Why is this?
This is because this is precisely the time when yang energy begins to rise. Therefore, a very important principle is that it is best to go to bed before 11 o’clock, so that this vital energy can be gradually nurtured.
A person’s sleep is closely linked to their lifespan; thus, sleeping is a way of nurturing yang energy and nourishing the body.
How to unblock the Gallbladder Meridian（Wang Zhixue, Consultant Physician（china）, Department of Traditional Chinese Medicine, Shandong Provincial Hospital）
II. Chinese Body Clock The Hour of Chou – Nourishing Liver Blood
The Hour of Chou refers to the period from 1 am to 3 am, when the Liver Meridian is at its peak.
According to Traditional Chinese Medicine, the liver governs growth and development, facilitating the gradual generation of yang energy; it also has the functions of blood production and detoxification, and can only function efficiently whilst the body is asleep. If one has not fallen asleep by this time, over the long term this may lead to liver disease.
The *Huangdi Neijing* (The Yellow Emperor’s Classic of Internal Medicine) states: ‘When a person is active, blood circulates through the meridians; when at rest, blood returns to the liver.’ When a person becomes angry or experiences significant emotional fluctuations, the body’s demand for blood increases. When our emotions are stable, a large volume of blood is stored in the liver.
Therefore, if we wish to nourish the liver properly, it is essential to be in a state of deep sleep between 1 am and 3 am.
Methods for unblocking the Liver Meridian（Huang Yuhong, Consultant, Department of Gastroenterology, The First Affiliated Hospital of China Medical University）
III. Chinese Body Clock The Hour of the Tiger – Resting Quietly to Nourish the Lungs
From 3 am to 5 am, the body’s qi and blood begin to be redistributed, a process carried out by the Lung Meridian. All parts of the body begin to shift from a state of stillness to movement, and the demand for blood and qi in each part begins to increase. Qi and blood flow into the Lung Meridian. This redistribution process must take place during deep sleep; if one wakes during this time, it indicates an insufficiency of qi and blood.
According to Traditional Chinese Medicine, the lungs are considered a delicate organ. Massaging the Taiyuan acupoint on the Lung Meridian at this time can help regulate and replenish qi, as well as stabilise the heart rate. It is particularly effective for those with deficient lung qi who suffer from chest pain, palpitations, arrhythmia or premature beats. Furthermore, regular massage of the Taiyuan acupoint over the long term can help replenish lung qi, promoting health and longevity.
The Taiyuan acupoint is situated at the palmar transverse crease of the wrist, on the side closest to the thumb, where the pulse can be felt. When massaging, use your fingertips to apply gentle pressure in a circular motion; do not apply too much force. Massage each side for 2–3 minutes.
Traditional Chinese Medicine holds the principle that ‘the five colours correspond to the five viscera’; white corresponds to the lungs. As dietary therapy for the lungs relies on white foods, these should naturally not be overlooked—such as pears, lily bulbs, lotus seeds and silver ear fungus. In particular, those with deficient lung qi are advised to consume these in moderation as part of their daily diet to nourish and moisten the lungs, thereby building a defence for their health!
How to clear a blockage in the Lung Meridian（Wang Zhixue, Consultant, Department of Traditional Chinese Medicine, Shandong Provincial Hospital）
IV. Chinese Body Clock Mao Hour — Intestinal Peristalsis and Smooth Bowel Movements
The Mao Hour refers to the period between 5 am and 7 am, when the Large Intestine Meridian is at its peak. The Su Wen: Ling Lan Mi Dian Lun states: ‘The Large Intestine is the organ of transmission; transformation originates from it.’ In short, the Large Intestine governs the body’s transport functions, promoting the absorption of nutrients and the expulsion of impurities.
As the saying goes, ‘At the Hour of Mao, the large intestine peristaltes, expelling toxins and waste.’ During the Hour of Mao, qi and blood flow to the Large Intestine Meridian. At this time, the large intestine’s peristalsis is at its fastest and its function is most active. Consequently, one feels the urge to defecate, and it is only natural to go. Those who do not yet have a regular bowel movement routine at the Hour of Mao need not worry; you can try drinking a glass of warm water or honey upon waking to help lubricate the bowels, followed by sitting on the toilet for a short while—but be careful not to exceed 10 minutes to prevent the formation of haemorrhoids—to help establish a conditioned reflex.
If you suffer from constipation and find that the two methods above are not particularly effective for you, then it is recommended that, upon waking, you do not rush to get out of bed. Instead, lie in bed and massage your abdomen in a clockwise direction. This can effectively stimulate the qi of the Large Intestine Meridian, promote intestinal peristalsis, enhance the bowel’s excretory function, and facilitate a smooth bowel movement.
Conversely, if you have a sensitive digestive system and are prone to diarrhoea, it is recommended to massage your abdomen in a counter-clockwise direction to help alleviate diarrhoea and restore intestinal balance. Whether clockwise or counter-clockwise, perform 20–30 circles per set, and carry out 2–3 sets each time.
How to Clear Blockages in the Large Intestine Meridian(Zhang Mengmeng,Department of Tuina, Associate Chief Physician(china), Shandong Provincial Hospital)
V. Chinese Body Clock Chen Hour – Nourishing the Stomach with Breakfast
The Chen hour refers to 7–9 am, historically known as the ‘Meal Hour’, when the Foot Yangming Stomach Meridian is at its peak.
The Huangdi Neijing states: ‘The stomach is the sea of the five viscera and six bowels; all food and drink enter the stomach, and the five viscera and six bowels all derive their qi from the stomach.’ In other words, the stomach is the organ that stores food and drink and acts as the source from which nutrients are produced to sustain the functions of the five viscera and six bowels.
After a night’s sleep, the body’s energy reserves are depleted and require timely replenishment of calories and nutrients to counteract the physical wear and tear. Furthermore, as the Stomach Meridian is at its peak during the Chen hour, the stomach’s digestive function is at its strongest; food consumed at this time is thoroughly digested by the stomach and, during the subsequent period when the Spleen Meridian is active (9–11 am), is absorbed by the spleen and transformed into essence and blood for the body’s use.
If one goes without food for too long, the stomach begins to secrete large amounts of gastric acid, which can erode the gastric mucosa and lead to digestive disorders; conversely, overeating places an excessive burden on the spleen and stomach, thereby depleting and suppressing the rise of yang qi. Therefore, breakfast must be nutritionally balanced and comprehensive; one must resolutely avoid irresponsible behaviour towards one’s health, such as skimping on breakfast, making do with a perfunctory lunch, or overindulging at dinner.
However, if you lack an appetite in the morning, you may try massaging the Tianshu acupoints on the Stomach Meridian. Place the pads of your thumbs on the Tianshu points on both sides, applying pressure gradually from light to firm, pressing down slowly for 4–6 minutes. Then, slowly lift your fingers and gently knead the acupoints for a moment; this can help dispel liver fire and stimulate your morning appetite.
How to Clear Blockages in the Stomach Meridian(Zhang Qiaoli,Chief Physician in Cardiology,Director of the Geriatrics Department,Dalian Jinzhou District Hospital of Traditional Chinese Medicine)
VI. Chinese Body Clock The Hour of Si – Overthinking Harms the Spleen
The Hour of Si, one of the twelve traditional Chinese time periods, corresponds to the period between 9.00 am and 11.00 am. During this time, the Spleen Meridian is dominant, and the focus of health preservation lies in nourishing the spleen.
According to Traditional Chinese Medicine, the spleen is the ‘foundation of postnatal life’ and the ‘source of the generation of qi and blood’. It plays a vital role in our physical health, primarily governing the generation of qi and blood; it is the very foundation of good health. The nutrients that sustain the activities of the five zang organs and six fu organs all originate from the spleen. Only when the spleen functions normally can it transform and generate qi, blood, body fluids and other nutrients, thereby ensuring the body’s normal digestive and absorptive functions.
If the spleen’s function is impaired, one is prone to drowsiness and fatigue, feeling listless throughout the day. Symptoms such as loss of appetite, a sense of oppression in the chest, and distension in the epigastrium and abdomen may also arise.
Furthermore, the Huangdi Neijing (The Yellow Emperor’s Classic of Internal Medicine) states that ‘the spleen corresponds to the emotion of thought’. Traditional Chinese Medicine holds that ‘excessive worry damages the spleen’; if one worries excessively, it will harm the spleen, leading to stagnation of spleen qi and impaired transformation and transport. This results in symptoms such as loss of appetite, indigestion and progressive weight loss, and may even lead to deficiency of qi and blood, affecting the functions of other organs and leaving one plagued by a multitude of ailments.
Therefore, one should learn to regulate one’s emotions in daily life; those prone to excessive worry must, in particular, learn how to relax both body and mind, alleviate anxiety and stress, and maintain a positive, balanced emotional state.
How to Clear Blockages in the Spleen Meridian？
VII. Chinese Body Clock The Hour of Wu — Taking a Midday Nap
The Hour of Wu, one of the Twelve Earthly Branches, corresponds to the period between 11.00 am and 1.00 pm. During this time, the Heart Meridian is dominant, and the focus of health preservation lies in nurturing the heart.
As is well known, the heart is the sovereign of the five viscera; it continuously pumps blood to every part of the body, nourishing all the organs.
From a Traditional Chinese Medicine perspective, the heart has two primary functions: firstly, it houses the spirit; the heart governs the body’s mental, conscious and cognitive activities. When heart qi is abundant, one’s spirit is vibrant, thinking is agile, and sleep patterns are regular and balanced; secondly, it regulates the blood vessels; the heart works in concert with the other viscera to propel blood throughout the body. When heart qi is abundant, the body’s blood vessels remain unobstructed, metabolic processes are sustained, accumulated toxins are eliminated, and stagnant blood is resolved.
Consequently, if the heart’s functions are impaired, the body’s tissues and organs will experience functional decline or even failure due to insufficient nourishment. Those with deficient heart qi are also prone to conditions such as arrhythmia, angina pectoris and myocardial infarction. So, during the midday hour when the Heart Meridian is at its peak, how should we nourish the heart?
In fact, there is just one simple thing we need to do at this time to achieve this: take an afternoon nap!
Traditional Chinese Medicine holds that ‘the heart governs the spirit’; the strength or weakness of the heart’s function directly affects a person’s mental state, emotions and cognitive processes. An afternoon nap promotes the harmonious interaction of yin and yang within the body, thereby nourishing the Heart Meridian. Consequently, taking a short nap at midday ensures that one is not only more alert but also mentally sharper when working in the afternoon.
This is particularly true in summer, when the weather is hot and people often feel listless due to a lack of sleep at night; maintaining the habit of taking an afternoon nap is all the more important. If, at this time, one forces oneself to fight off drowsiness for the sake of work or leisure, it can easily deplete the heart’s blood and lead to an upward surge of heart fire. This will not only affect one’s work efficiency in the afternoon but may also result in restlessness and insomnia at night, thereby compromising the quality of sleep.
How to Clear Blockages the Heart Meridian?
Although taking an afternoon nap may seem simple, it is essential to bear these three points in mind:
① Do not nap immediately after a meal
Immediately after eating, a large volume of blood flows to the stomach to increase gastrointestinal motility and aid digestion. At this time, oxygen supply to the brain drops significantly. If you fall asleep straight away, it may lead to insufficient blood supply to the brain; for those with cardiovascular or cerebrovascular conditions in particular, this can easily increase the risk of a stroke.
② Do not nap for too long
Generally speaking, a nap of 30–60 minutes is ideal. Napping for too long can actually lead to symptoms such as difficulty waking up and fatigue; upon waking, you may feel even less energetic and particularly exhausted.
③ Choose the correct napping position
Many office workers prefer to nap face-down; however, this puts pressure on the arms, face, chest and abdomen, causing excessive curvature of the cervical and lumbar spine. This can lead to muscle tension and may even impair blood circulation and digestion, resulting in symptoms such as dizziness, weakness and bloating upon waking.
However, for most office workers, few have the opportunity to lie down for a nap. In such cases, you can keep a U-shaped pillow in your office to place around your neck whilst napping, allowing the cervical spine to remain in a relatively natural position, whilst your body can lean against the back of the chair, sitting relaxed with your eyes closed.
④ Tapping the Heart Meridian After a Nap
Upon waking from a nap, it is best not to engage in strenuous exercise straight away. If you still feel a little drowsy, you can use the four fingers (excluding the thumb) to gently tap the Heart Meridian on the opposite arm, helping you to gradually regain your vigour.
In addition, press and knead key acupoints along the Heart Meridian, such as the Shenmen point. This is one of the most important acupoints on the Heart Meridian; it serves as the gateway through which the meridian’s qi enters and exits, replenishing the heart’s vital energy. Consequently, it is a crucial acupoint for maintaining the health of the cardiac system. Regular stimulation of this point can help prevent and alleviate various conditions, including chest pain, constipation, palpitations and insomnia.
VIII. Chinese Body Clock Wei Hour – Massage to Promote Bowel Movement
From 13:00 to 15:00 in the afternoon is the Wei hour, when the Small Intestine Meridian is active.
Traditional Chinese Medicine refers to the small intestine as the ‘organ that receives and holds, from which transformation occurs’. The function of the small intestine is first to absorb the essence of food that has been broken down by the spleen and stomach, and then to distribute it to the various organs.
Traditional Chinese Medicine states that the small intestine is responsible for receiving and transforming substances, as well as distinguishing between the pure and the impure. It receives food that has undergone preliminary digestion in the stomach, further digests it into substances that the body can absorb and utilise, and absorbs the essential nutrients to supply the body with energy. Consequently, the Small Intestine Meridian is regarded as the ‘production line worker’ on duty during the Wei hour, diligently absorbing the nutrients that sustain the body, before finally passing the waste products down to the Large Intestine, where they are expelled from the body via the Large Intestine Meridian’s ‘Pò Mén’ (Gate of the Soul).
It can be said that more than half of the nutrients absorbed by the body are processed in the small intestine; its importance is therefore self-evident. So, during the Wei hour—when the Small Intestine Meridian is active—how should we nurture it?
The Wei hour falls just after lunch, by which time part of the meal has been digested and many nutrients have entered the bloodstream, increasing its viscosity. Therefore, during the Wei hour, one should replenish fluids promptly—for example, by drinking a glass of plain water or a cup of light tea—to dilute the blood and help protect the blood vessels. In addition, massaging the lower abdomen in a clockwise direction can stimulate intestinal peristalsis, aiding the passage of wind and stools, thereby reducing the incidence of constipation and intestinal obstruction.
How to Keep the Small Intestine Meridian Unblocked（Chen Yujing,Department of Traditional Chinese Medicine, Associate Chief Physician, Doctor of Medicine, Postdoctoral Fellow in Traditional Chinese Medicine Pharmacology）
IX. Chinese Body Clock Shen Hour – Hydration and Detoxification
The Shen Hour refers to the period from 15:00 to 17:00, when the Bladder Meridian is active.
The Bladder Meridian runs along the back of the body and governs the body’s yang energy, serving to protect the body against external pathogens. Furthermore, it has the longest course and the greatest number of acupoints; the acupoints corresponding to all five zang organs are located along the Bladder Meridian. Therefore, if the flow of the Bladder Meridian is obstructed, the body is prone to various issues such as generalised pain, calf cramps, difficulty urinating and memory decline.
The Huangdi Neijing (The Yellow Emperor’s Classic of Internal Medicine) states: ‘The bladder is the official of the capital; bodily fluids are stored therein, and when qi is transformed, they can be expelled.’ This means that the primary function of the bladder is to store and regulate bodily fluids through the process of ‘qi transformation’. So, during the Shen hour when the Bladder Meridian is at its peak, what can be done to ensure it functions more effectively?
It is recommended to drink a little more water during this period and urinate promptly, as this helps the body eliminate toxins; with fewer toxins, the body feels more comfortable. In particular, we should make a conscious effort to urinate promptly in our daily lives, rather than only paying attention to this during the Shen hour when the Bladder Meridian is active, as frequently holding in urine can affect our bladder health and may lead to urinary tract infections and ‘urinary retention’.
If the Bladder Meridian is the body’s detoxification channel, then the Weizhong acupoint is the outlet along this channel. The Weizhong acupoint is situated at the midpoint of the popliteal crease, between the tendons of the biceps femoris and semitendinosus muscles. Use the tips of both thumbs to press the Weizhong acupoints on both sides; the pressure should be firm enough to induce a slight soreness. One cycle consists of one press followed by one release; repeating this 10 to 20 times will help the Bladder Meridian to eliminate toxins more effectively.
Symptoms and Clearing of the Bladder Meridian(Wang Haiquan,Chief Physician, Department of Traditional Chinese Medicine, Shandong Provincial Hospital)
X. Chinese Body Clock You Hour – Warming the Yang of the Kidney Meridian
The You Hour in the Twelve Earthly Branches corresponds to the period between 5 pm and 7 pm. During this time, the Kidney Meridian is at its peak, making it an ideal time to nurture the kidneys.
Just as there are four seasons in a year, there are four ‘mini-seasons’ in a day; the You Hour corresponds to ‘autumn’ in the daily cycle. Autumn is the season of harvest and storage—a time for gathering and storing provisions. Here, ‘storage’ refers to placing grain into granaries. So what, then, are the body’s ‘grain’ and ‘granary’? The grain is essence, vital energy and blood, whilst the granary is the kidneys.
Traditional Chinese Medicine holds that ‘the kidneys are the root of one’s innate constitution’. The kidneys possess unique and irreplaceable physiological functions; their strength or weakness influences a person’s constitution and physical vigour. Furthermore, the kidney qi generated from kidney essence is regarded as the body’s ‘vital energy’, the ebb and flow of which affects the growth, prosperity and decline of life.
Not only that, but the kidneys also maintain the stability of the body’s internal environment and clear excess metabolic waste and toxins from the body; furthermore, they possess endocrine functions that promote the synthesis of haemoglobin.
If a person’s kidney qi is deficient, they are prone to soreness and weakness in the lower back and knees, a weakened immune system, susceptibility to illness, and accelerated ageing.
It is recommended to soak one’s feet during this period, as this can unblock the Kidney Meridian, warm the kidneys and bolster yang energy, and also help alleviate symptoms such as sensitivity to cold in the lower back and lower back and neck pain.
Symptoms and Clearing of the Kidney Meridian(Wang Haiquan,Chief Physician, Department of Traditional Chinese Medicine, Shandong Provincial Hospital)
XI. Chinese Body Clock Hour of Xu — Warding Off External Pathogens
The Hour of Xu refers to the period from 7 pm to 9 pm, when the Pericardium Meridian is dominant.
The Huangdi Neijing (The Yellow Emperor’s Classic of Internal Medicine) states that ‘the Heart is the sovereign organ,’ meaning it is akin to the ’emperor’ among the five viscera and six bowels. Meanwhile, the pericardium serves as the ‘sword-bearing bodyguard at the emperor’s side,’ assisting the emperor in warding off external invasions and harm. Simply put, if external pathogens invade, the pericardium will bear the brunt of the attack on behalf of the Heart to safeguard its well-being.
The pericardium refers to the outer membrane of the heart, as well as the network of vessels attached to it; its primary function is to ensure the smooth flow of qi and blood. If the pericardium is attacked by wind, dampness or heat pathogens, it can easily lead to rheumatic heart disease; if attacked by cold pathogens, it can obstruct the flow of blood vessels, causing angina; and if attacked by water and dampness pathogens, it can lead to conditions such as pericardial effusion.
It is therefore recommended that you tap along the pericardium meridian daily. You can do this whilst out for a walk, or whilst sitting on the sofa at home. Tap for 3–5 minutes at a time, using gentle pressure until the skin becomes slightly flushed.
The Pericardium Meridian originates in the chest, runs from the armpit along the inner side of the arm to the tip of the middle finger. Apart from the armpit, simply tap along the course of the meridian; In the armpit area, you can stimulate the Pericardium Meridian by using a flicking motion. Place your thumb in the armpit; there is a large tendon there. When flicking, if you feel a tingling sensation in your little finger, this indicates you are stimulating the correct area.
At the same time, you can also massage the Laogong acupoint on the Pericardium Meridian in a clockwise direction for 36 circles. This stimulates the Pericardium Meridian, promotes its normal functioning, and thereby better safeguards our heart health.
Symptoms and Clearing of the Pericardium Meridian(Wang Zhixue,Wang Zhixue, Consultant Physician (China), Department of Traditional Chinese Medicine, Shandong Provincial Hospital)
XII. Chinese Body Clock The Hour of Hai – Calming the Mind and Centring the Spirit
The Hour of Hai (9:00 pm–11:00 pm) aligns with the peak activity of the Triple Energizer Meridian (TE, SJ), when the flow of qi and blood within this meridian is at its strongest; this is the optimal time to nourish the Triple Energizer Meridian! The Triple Burner is one of the six fu organs; it refers to the network-like region that connects the five zang organs and six fu organs. It plays a crucial role in regulating primordial qi, the digestion of food and drink, and assisting the body’s fluid metabolism—hence its name, ‘Burner’.
The Triple Burner must remain unobstructed; if it becomes blocked, illness ensues. If one sleeps during the Hour of Hai, the hundred meridians can rest and recuperate, thereby maintaining the proper functioning of the Triple Burner, which is highly beneficial to the body.
Therefore, at around 10 pm, we should allow our bodies to settle down and prepare for sleep. You might lie in bed and clear your mind, regulate your breathing and cultivate drowsiness; or listen to some gentle, soothing music to relax tense nerves; or wear a steamed eye mask to relieve eye strain. These simple methods can all help us drift off to sleep smoothly.
However, in today’s fast-paced modern society, many people are weighed down by worries, leading to restlessness and insomnia at night, whilst during the day they experience symptoms such as dizziness and constant yawning—all signs of an imbalance in the flow of vital energy. In such cases, one might try massaging the Sanyinjiao acupoint, which aids sleep and calms the mind.
Place your thumb on the Sanyinjiao acupoint, with the other four fingers resting on the outer side of the lower leg beside the tibia. Use your thumb to massage in a circular motion, combined with light pressing. Perform this on both sides simultaneously for approximately five minutes per point. This can strengthen the spleen and nourish the blood, regulate the liver and tonify the kidneys, calm the mind and aid sleep; it is particularly suitable for those who stay up late or suffer from insomnia.
There are four seasons in a year—spring, summer, autumn and winter—and each season has its own rhythm of life and growth. In this ceaseless cycle of life, our ancestors guide us to act in harmony with the seasons and make the most of our surroundings. Only in this way can we become one with heaven and earth, harmonise yin and yang, and may we all live fully in the present moment.
Symptoms and Clearing of the Triple Energizer Meridian(Zhang Qiaoli,Chief Physician in Cardiology,Director of the Geriatrics Department,Dalian Jinzhou District Hospital of Traditional Chinese Medicine)
