護理師正在教導病人有關預防高血壓。下列何種生活方式的改變最有效？
A nurse is educating a client about preventing hypertension. Which lifestyle modification is most effective?
- AMaintaining a healthy weight✓ 正解維持健康體重
- BReducing physical activity減少體力活動
- CConsuming excessive alcohol攝取過量酒精
- DIncreasing sodium intake增加鈉攝取量
高血壓（Hypertension）的預防核心在於降低心血管負荷。維持健康體重（Healthy weight）是預防高血壓最根本的策略，因為肥胖會增加血管阻力、啟動腎素-血管張力素-醛固酮系統（RAAS），直接導致血壓升高。相較於單一飲食調整，減輕體重能產生多重代謝改善效果，是臨床上預防慢性病的首選建議。
Maintaining a healthy weight is the most effective lifestyle modification for preventing hypertension, as obesity increases vascular resistance and activates the renin-angiotensin-aldosterone system. Reducing physical activity, consuming excessive alcohol, and increasing sodium intake are risk factors that contribute to elevated blood pressure rather than preventive measures. Therefore, achieving and sustaining a healthy weight provides the greatest benefit in reducing cardiovascular load and preventing chronic disease.