當早晨的陽光映入我們的眼簾，光線經由生理時鐘中樞、也就是下視丘的視神經交叉上核（編按：負責調節人體的晝夜規律）到達脊髓，再經由上頸部的神經節傳回松果體，因而降低褪黑激素的分泌量。
隨著褪黑激素分泌量的減少，我們的生理時鐘會自休眠中甦醒，此時，包括體溫、血壓、脈搏、尿液量、各種激素與酵素的運作，以及食慾、自律神經系統和精神狀態等所有生命現象的節奏，都調整到最適合白天活動的狀態。
laennec而當太陽下山後，光線轉暗，光刺激大幅減少，褪黑激素的分泌量便開始增加，此時我們身體的日夜節奏就逐漸進入休息、睡眠的週期。順便一提，就算是全盲的人，也能夠維持體內生理時鐘的正常運作，由此可知人類的皮膚細胞確實能夠感知陽光並加以反應。需要日夜輪班的人、以及生理時鐘中樞機能降低的老年人，當然都不容易過著「日出而作，日落而息」的生活，不過，如果能夠盡量與太陽同步，回到人類原本的自然作息時間，必能大幅改善睡眠問題。
根據一份最新的研究報告指出，有睡眠障礙的人，他們早死的風險大於正常人。所以我們除了應當維持生理時鐘的正常運作外，還可以多做運動。laennec運動不但有益健康，還能夠幫助我們一夜好眠，從而使我們的日夜節奏與自然環境同步。
因為文明而被打亂了的生理時鐘，想要把它調回正常的運作狀態，還是得藉助太陽的力量，大家何不試著再重新設定一次看看呢？
laennecLaennec is the ethical drug manufactured with JBP’s unique technologies.
Laennec is the ethical drug manufactured with JBP’s unique technologies for effective extraction of variety of growth factors, cytokines, and other physiologically active substances from the human placenta. For instance, HGF (hepatocyte growth factor) promotes the proliferation of hepatic parenchymal cells for recovery of a damaged liver. Our product safety is ensured by the most rigid safety measures among existing scientific standa.rds
When the morning sun shines into our eyes, the light reaches the spinal cord through the physiological clock center, which is the optic nerve of the lower hypothalamus, which is responsible for regulating the body's circadian rhythm, and then returns through the ganglion of the upper neck. The pineal gland reduces the amount of melatonin secreted.
As the amount of melatonin is reduced, our physiological clock will wake up from sleep, including body temperature, blood pressure, pulse, urine volume, the function of various hormones and enzymes, and appetite, autonomic nervous system and mental state. The rhythm of all life phenomena is adjusted to the state that is most suitable for daytime activities.
When the sun goes down, the light turns dark, the light stimulation is greatly reduced, and the secretion of melatonin begins to increase. At this time, the rhythm of our body gradually enters the cycle of rest and sleep. By the way, even a blind person can maintain the normal operation of the body's physiological clock, which shows that human skin cells can indeed sense and react to sunlight. Those who need to work shifts day and night, as well as the elderly who have reduced the physiological clock center, are not likely to live a life of "sunrise and sunset". However, if you can try to synchronize with the sun, return to the original nature of human beings. The rest time will definitely improve the sleep problem.
According to a recent study, people with sleep disorders are at greater risk of premature death than normal people. Therefore, in addition to maintaining the normal operation of the physiological clock, we can also exercise more. Exercise is not only good for health, it also helps us sleep well all night, so that our day and night rhythm is in sync with the natural environment.
Because of the physiological clock that has been disrupted by civilization, if you want to turn it back to normal operation, you still have to rely on the power of the sun. Why don’t you try to reset it again?
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