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Biological Age Estimator

Your chronological age is just a number. Lifestyle factors determine your BIOLOGICAL age — how fast your body is actually aging.

1. Exercise frequency

2. Sleep quality & duration

3. Diet quality

4. Chronic stress

5. Smoking

6. Alcohol consumption

7. Social connections

8. Body composition

9. Sun protection

10. Sense of purpose/meaning

理解生物学年龄与实际年龄的区别

实际年龄(生理年龄)记录的是你度过的日历年数,而生物学年龄则反映了你的身体在细胞层面的真实衰老程度。由于生活方式、遗传基因和环境暴露的不同,同年出生的两个人,其生物学年龄可能相差 10 到 20 年。通过端粒长度、DNA 甲基化模式、炎症标志物和代谢健康指标等生物标志物,我们可以对生物学年龄进行量化评估。

Key Facts

  • DNA 甲基化时钟(如 Horvath 时钟)预测生物学年龄的误差可控制在 3-5 年内
  • 与久坐不动的人相比,规律运动可使生物学年龄年轻 3-9 年
  • 长期压力平均会导致生物学衰老加速 2-4 年
  • 坚持地中海饮食与更长的端粒长度及更年轻的生物学年龄密切相关
  • 睡眠不足会在短短几周内显著加速表观遗传衰老标志物的变化
  • 社交隔离带来的衰老效应相当于每天吸烟 15 支烟

你可以通过干预影响的衰老特征

衰老的九大核心特征——基因组不稳定、端粒缩短、表观遗传改变、蛋白质稳态丧失、营养感应失调、线粒体功能障碍、细胞衰老、干细胞耗竭以及细胞间通讯改变——均受到可改变因素的影响。例如,热量限制可以激活 AMPK 和长寿蛋白(Sirtuins)通路;运动能触发细胞自噬(细胞清理机制);富含多酚的饮食能减少 DNA 的氧化损伤。此外,NMN 等 NAD+ 前体可以支持线粒体功能,而控制炎症水平(如 CRP、IL-6)则能减缓衰老细胞的积累。

Frequently Asked Questions

如何测量生物学年龄? +

目前的“金标准”是 DNA 甲基化检测(如 GrimAge 或 DunedinPACE 等表观遗传时钟)。此外,一些更易获取的指标也具有参考价值,包括最大摄氧量 (VO2max)、握力、步行速度、C 反应蛋白 (CRP) 水平、空腹血糖、甘油三酯和血压——这些指标均与生物学衰老速率密切相关。

生物学年龄可以逆转吗? +

可以。研究表明,通过生活方式干预(饮食、运动、睡眠、压力管理),在 8 周内通过 DNA 甲基化测定,生物学年龄可降低 1-3 年。著名的 TRIIM 试验甚至显示了胸腺再生以及表观遗传年龄逆转 2.5 年的效果。

哪些因素最能加速生物学衰老? +

主要的加速因素包括:吸烟(增加 4-7 年衰老)、长期压力、睡眠不足(每天少于 6 小时)、久坐不动、过量饮酒、肥胖(尤其是内脏脂肪)、慢性炎症,以及高糖和高种子油的超加工饮食。

我应该从什么时候开始追踪生物学年龄? +

理想情况下,应从 30 多岁开始,因为这是身体机能开始出现年龄相关性下降的时期。然而,任何能够降低生物学年龄的干预措施(运动、营养、睡眠)对所有人都有益,无论何时开始。即使在 60 多岁开始,也能获得显著的改善。

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