Have you ever experienced a night like this: your body is clearly exhausted, yet the moment you lie down in bed, your brain seems to open the floodgates, and a torrent of thoughts rushes in with no way to stop it? This phenomenon of "lying in bed at night with a racing mind that won't stop" may, from the perspective of Traditional Chinese Medicine (TCM), not simply be a case of "overthinking," but rather a signal that the body's internal balance has been disrupted. So what health secrets lie behind this? And how should we understand it from the standpoint of daily self-care?
Why doesn't the mind wander when busy during the day, yet runs wild at night?
Many people wonder: why can I still concentrate at work during the day, but the moment I lie down at night, my thoughts multiply endlessly? According to TCM theory, this relates to the principle that "when yang enters yin, one sleeps." During the day, yang qi remains on the exterior, supporting our activities; at night, yang qi should retreat inward and merge with yin qi so that a person can fall asleep peacefully. If "yang fails to enter yin" — for example, due to excessive liver fire or disharmony between the heart and kidney — the brain's "excited" state cannot settle, leading to the situation of "lying in bed at night with a racing mind that won't stop." It is like a lamp that cannot be turned off when it should be, which naturally affects rest.
Is a racing mind related to dysfunction of the "heart" or "liver"?
In TCM organ theory, "the heart stores the spirit and governs mental activity," while "the liver governs free coursing and regulates emotions." When the heart spirit is unsettled or liver qi is constrained, scattered thoughts easily arise. For instance, prolonged stress and suppressed emotions can cause liver qi to become stagnant, which in turn affects the stability of the heart spirit. Alternatively, excessive rumination consumes heart blood, so that "blood fails to nourish the spirit," causing the brain to "work overtime" at night. Therefore, "lying in bed at night with a racing mind that won't stop" often indicates that the heart and liver organs need attention. On the dorsum of the foot, Taichong (LR3) is an acupoint closely related to the liver meridian. Taichong, also known as Dachong, is located on the dorsum of the foot, in the depression anterior to the junction of the first and second metatarsal bones, belonging to the Foot Jueyin Liver Meridian, and is the yuan-source point of the liver meridian. The Lingshu: Jiu Zhen Shi Er Yuan states: "When the five zang organs have illness, one should select from the twelve yuan-source points." As the site where the original qi of the liver meridian is infused, Taichong corresponds to the liver's functions of governing free coursing and regulating emotions, and is therefore frequently mentioned in theoretical analyses of patterns such as "liver qi constraint" and "unsettled heart spirit." In clinical practice, licensed TCM physicians also commonly encounter cases of sleep disturbance triggered by emotional dysregulation, and they typically approach pattern differentiation from the perspective of harmonizing the heart and liver.
Can diet or lifestyle habits also aggravate this condition?
Certainly. In one's daily diet, a preference for pungent, greasy, or stimulating foods such as coffee and strong tea can easily foster internal heat and disturb the heart spirit. Playing on the phone before bed or watching tense, stimulating videos also keeps the brain in a sustained state of excitement, making it difficult to switch to rest mode. These habits all make "lying in bed at night with a racing mind that won't stop" occur more frequently. Therefore, adjusting one's daily routine and reducing pre-sleep stimulation are the foundation for improving this phenomenon.
Are there simple TCM daily regulation approaches for reference?
In addressing this condition, TCM advocates starting from "nourishing the heart and calming the spirit, and soothing the liver and relieving constraint." For example, before bed one may try soaking the feet in warm water to help qi and blood descend; or gently press Yongquan (KI1) on the sole of the foot, as well as Shenmen (HT7) on the inner side of the wrist. Yongquan, also known as Dichong, is located in the depression at the junction of the anterior one-third and posterior two-thirds of the sole of the foot, belonging to the Foot Shaoyin Kidney Meridian, and is the jing-well point of the kidney meridian.