A recent study published in the European Heart Journal has found a strong link between bedtime and cardiovascular health. Researchers tracked over 88,000 participants for an average of six years and discovered that individuals who fell asleep between 10:00 and 10:59 p.m. had the lowest risk of developing cardiovascular diseases, such as heart attacks and strokes. In contrast, those who went to bed before 10:00 p.m. or after midnight faced a 24% and 25% higher risk, respectively.Scientists suggest this association may be tied to the body’s circadian rhythm—the internal biological clock that regulates vital functions like blood pressure, heart rate, and hormone release. Consistently sleeping at non-optimal times may disrupt this rhythm, potentially increasing the risk of chronic illnesses. Notably, the study also revealed that women appeared more sensitive to bedtime timing, indicating that gender may play a significant role.Experts recommend maintaining a consistent and moderate bedtime—ideally around 10 p.m.—to support heart health. While individual variations exist, good sleep hygiene remains a key component in cardiovascular disease prevention. Future research will further investigate how sleep timing interacts with metabolic and inflammatory pathways.
近期一项发表于《欧洲心脏杂志》的研究表明，入睡时间与心血管健康密切相关。研究人员对超过8.8万名参与者进行了平均长达6年的追踪调查，发现晚上10点至10点59分之间入睡的人群，其患心血管疾病（如心脏病、中风等）的风险最低。相比之下，早于晚上10点或晚于午夜入睡的人，心血管疾病风险分别升高了24%和25%。研究人员认为，这种关联可能与人体的昼夜节律（生物钟）有关。生物钟调控着包括血压、心率和激素分泌在内的多项生理功能。若长期在非理想时间入睡，可能会扰乱这一内在节律，进而增加慢性疾病风险。尤其值得注意的是，该研究还发现女性受入睡时间影响更为显著，提示性别因素可能在其中扮演重要角色。专家建议，保持规律且适中的入睡时间（如晚间10点左右）有助于维护心血管健康。当然，个体差异存在，但总体而言，良好的睡眠习惯是预防心血管疾病的重要一环。未来研究将进一步探索睡眠时机与代谢、炎症等机制之间的深层联系。
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