Baduanjin Lower Elevated Blood PreSsure Study

Inclusion Criteria:

• Age 40 years or older;

• Systolic blood pressure (SBP) <140 mmHg and diastolic blood pressure (DBP) <90 mmHg

• SBP 130-139 mmHg, and/or DBP 85-89 mmHg

Exclusion Criteria:

• Diagnosis of hypertension (SBP≥140 mmHg, and/or DBP ≥90mmHg）

• History of cardiovascular diseases, such as coronary heart disease, heart failure,stroke, and peripheral vascular disease

• Diagnosis of chronic kidney disease, primary aldosteronism, Cushing's syndrome, orpheochromocytoma

• Newly diagnosed cancer or cancer metastasis within 5 years

• History of autoimmune disease

• Having taken antihypertensive drugs or immunoregulators within 2 weeks

• A long-term need for antihypertensive drugs or immunomoregulators

• Unable to maintain moderate intensity exercise due to illness or other reasons

• Pregnant, breastfeeding, or planning to become pregnant within the next 1 year

• Currently taking regular exercise (at least 30 minutes of moderate-intensityexercise at least three times a week)

• Allergic to sports bracelets

• Having participated or been participating in other clinical trials within the last 3months

• Unable to use smartphones

• Other factors that may affect the follow-up, such as alcohol or substance abuse inthe last 12 months, planing to live out of town for a long time, or diagnosis ofdementia or cognitive impairment which indicates incapability of completing thestudy

• Unable to accurately measure blood pressure using the sphygmomanometer provided bythe study due to a too large or too small arm circumference