The Difference in Heat Transport Characteristics of the Heart and Lung Meridians

Inclusion Criteria

• •1. Patients should meet the above diagnostic criteria, and the severity of COPD is in the stage of GOLD 2 or 3 based on pulmonary function testing;
• •2. COPD patients in the stable phase, who present with mild symptoms of cough, expectoration and short breath;
• •3. 35 ≤ age ≤75 years, male or female;
• •4. Patients have clear consciousness and could communicate with others normally;
• •5. Patients could understand the full study protocol and have high adherence.Written informed consent is signed by themselves or their lineal kin.
• •1. Healthy volunteers who could provide a recent medical examination report to confirm they have not any cardiovascular, respiratory, digestive, urinary, hematological, endocrine and neurological disease;
• •2. 35 ≤ age ≤75 years, male or female;
• •3. Participants have clear consciousness and could communicate with others normally;
• •4. Participants could understand the full study protocol and have high adherence .Written informed consent is signed by themselves or their lineal kin.