Tai Chi Improves Sleep Quality in Mild to Moderate Chronic Insomnia Patients

What are the requirements for participating in this study? 1. Age 40 to 69, gender unlimited; 2. Insomnia symptoms (difficulty falling asleep, frequent awakenings during sleep, early morning awakening, etc.) occurring three or more times per week for three months or longer (meeting DSM-5 diagnostic criteria for chronic insomnia and International Classification of Sleep Disorders standards); 3.7 points \<ISI baseline score ≤ 21 points (mild to moderate insomnia); 4\. The patient is dissatisfied (option 3) or very dissatisfied (option 4) with their current sleep 5. The incubation period or wake time after falling asleep is more than 30 minutes, and the total sleep time is less than 6.5 hours per day; 6. Willing to follow the exercise prescription and coach's guidance, and cooperate with the exercise intervention for 6 weeks; 7. Being able to maintain consistent lifestyle and sleep patterns throughout the study; 8. Fixed residence and no expectation of moving or traveling within 6 weeks; 9. Sign the informed consent form. You are not eligible to participate in this study if you meet any of the following criteria: 1. Exclude diseases that affect sleep (such as tumors, dementia, obstructive sleep apnea, etc.); 2. Taking medications that may affect sleep (such as steroid hormones, sleeping pills, psychotropic drugs); 3. Abuse of alcohol or drugs in the last 3 months; 4. Liver or kidney dysfunction; 5. History of severe cardiovascular and cerebrovascular diseases; 6. History of mental illness; 7. Expect to work night shifts or travel across time zones or sleep irregularly during the study period; 8. Participated in other intervention clinical trials, including drugs, nutritional preparations and medical devices, within 3 months before the study. What will I experience if I participate in this study? If eligible, participants will be randomly assigned by physicians to one of two study phases: the screening and baseline assessment phase, or the intervention and follow-u