護理師正在提供有關癌症預防的教育。下列何種生活方式選擇與某些癌症（如肝癌、結腸癌）風險增加的關聯性最強？
A nurse is providing education on cancer prevention. Which lifestyle choice is most strongly associated with an increased risk of certain cancers (e.g., liver, colon)?
- AExcessive sun exposure過度曝曬陽光
- BHigh intake of processed meats高量攝取加工肉品
- CLack of physical activity缺乏身體活動
- DHeavy alcohol consumption✓ 正解大量飲酒
癌症預防教育的核心在於識別可改變的行為風險因子。酒精攝取量與多種癌症（特別是肝癌、結腸癌、食道癌及乳癌）有強烈且具劑量反應的關聯性。酒精代謝產物乙醛（Acetaldehyde）會損害DNA並阻礙細胞修復，酒精本身亦會影響葉酸吸收與荷爾蒙水平。雖然日曬、缺乏運動與加工肉品皆為風險因子，但在流行病學研究中，重度飲酒被視為多系統癌症的主要致病推手之一。
The core of cancer prevention education is identifying modifiable behavioral risk factors. Alcohol consumption has a strong dose-response association with multiple cancers, particularly liver, colon, esophageal, and breast cancer. Its metabolite acetaldehyde damages DNA and impairs cellular repair; alcohol itself also affects folate absorption and hormone levels. Although sun exposure, lack of physical activity, and processed-meat intake are all risk factors, epidemiologic research has identified heavy alcohol use as one of the major drivers of cancers across multiple systems.