生物与医学2024sciencedirect.com
基于能量的模型解释慢性压力如何随时间转化为疾病
Energy-based model explains how chronic stress transforms into disease over time
进阶 · 约 60 分钟读完前置知识：能量代谢基础、慢性压力生理学、生物能量学
导读
论文提出一个基于能量的模型，试图解释慢性压力如何随时间累积并转化为疾病。其核心思路是：应对压力的大脑-身体过程会持续消耗能量，而机体可利用的能量有限，长期过度消耗可能挤占维持和修复过程，从而促发疾病。
HN 关注点：这一模型能否自洽解释压力致病，尤其是它与“运动有益健康”和能量消耗/寿命类比之间的张力。
HN 评论精选
这几条评论里：质疑 2 补充 1
补充把论文与运动生理学中的能量分配/修复假说联系起来，提供理论参照。
这篇研究让我想到今夏读的两本书：Herman Pontzer 的《Burn》提出“受限能量消耗假说”，Daniel E. Lieberman 的《Exercised》讨论“昂贵修复假说”。两者试图解释为什么运动能迫使身体停止把能量用于自我破坏（炎症、自身免疫病），转而用于自我修复（释放抗氧化剂、修复损伤）。
jgneff查看英文原文
I think this study is related to two books I read this summer: Burn, by Herman Pontzer, presents his "constrained energy expenditure hypothesis," and Exercised, by Daniel E. Lieberman, discusses his "costly repair hypothesis." Together, they try to explain why exercise can force your body to stop using its energy to destroy itself (inflammation, autoimmune diseases) and instead use its energy to restore itself (releasing antioxidants, repairing damage).
质疑质疑模型的因果自洽性：能量消耗本身难以解释为何压力致病而运动有益。
作者似乎在说，压力带来的额外能量消耗本身就能成为致病机制，但这不太说得通：代谢可适应，为什么不会被能量产生增加抵消？压力人群并非普遍消瘦，反而有不少超重者。若代谢升高本身是罪魁，经常锻炼者甚至运动员岂不更易患病？若说“情况不同”，那就等于承认能量消耗本身不是原因。此外，摘要说“生物消耗能量的能力有限”，可这对运动同样成立，为何只适用于压力？摘要还说压力应对的大脑-身体过程过度消耗能量会导致……
mojosam查看英文原文
it sounds like the authors are suggesting that additional energy usage caused by stress can, in isolation from other causes, be a mechanism for disease. But that doesn’t make much sense: - our metabolisms are adaptable, so why wouldn’t this increase in energy use simply be offset by an increase in energy production? It can’t be that people who are stressed in general aren’t getting enough energy, because that would correlate stress with weight loss, but I would argue that there are plenty of overweight people with stress. - if the argument is that an increased metabolism by itself is the culprit, then why wouldn’t people with higher metabolisms in general — like anyone who exercises regularly, but certainly athletes — not also experience more disease? If your answer is “that’s different for some reason”, then that means that increased energy usage and metabolism is not by itself the cause, which suggests it may not be the cause at all. Furthermore, even granting the supposition that stress requires increased energy usage, their abstract doesn’t make much sense: - “Living organisms have a limited capacity to consume energy.” Okay, so that means that no matter how stressed we get, there’s a cap to the energy we can use. But how is that relevant, since it also applies to exercise or other energy utilization by the body? Why does a limited capacity to consume energy only apply to stress? - “Overconsumption of energy by [stress handling] brain-body processes leads to … excess energy expenditure above the organism’s optimum”. Thats basically a tautology, but more importantly, it doesn’t tell us that energy consumption above “optimal” — which seems extremely vague — is a bad thing. - “In turn, [excess energy consumption above the optimal] accelerates physiological decline in cells, laboratory animals, and humans, and may drive biological aging”. So that “may” is a pretty good reason to dismiss this, since again why wouldn’t this lead to increased disease among athletes or anyone with higher metabolism? - “Mechanistically, the energetic restriction of growth, maintenance and repair processes leads to the progressive wear-and-tear of molecular and organ systems” Maybe, but why are they energetically restricted if metabolism has increased to provide more energy? And again, why don’t we then see increased disease and aging in anyone who exercises regularly, since that exercise not only uses energy that restricts growth, maintenance and repair, but exercise causes more need for repair. I think the core problem is that it’s all going to boil down to how you define “optimum”, which the authors conveniently don’t. The authors are going to be left with defining “optimum” as meaning “that energy usage which does not cause disease”. But that’s no different than simply claiming “stress causes disease”, so this model describes nothing, since it tells us nothing about how to identify non-optimum energy usage or how non-optimum energy usage causes disease.
质疑追问压力耗能模型是否同样适用于运动，点出与运动益处的矛盾。
这是否意味着规律锻炼也会产生同样效果？
bloated5048查看英文原文
Does it mean exercising regularly does the same?
相关资源
从这篇论文所有 HN 讨论帖的全部评论里整理出来的链接。
历次讨论
- 2024Hacker News 讨论帖186 分 · 55 评
同领域还值得读
CRISPR 在活体动物中消除 HIV-1 感染
CRISPR eliminates HIV-1 infection in live animals
报告利用 CRISPR/Cas9 基因编辑技术在活体动物中清除 HIV-1 感染：研究人员通过腺病毒载体递送特定的 Cas9 系统，从被感染细胞中切除嵌入的 HIV 病毒 DNA。
生物与医学2017 · 1,455 分 · 239 评入门 · 约 30 分钟编辑精选保护区飞行昆虫生物量27年下降75%
75% decline over 27 years in total flying insect biomass in protected areas
这篇发表于 PLOS ONE 的研究通过在德国保护区长达 27 年的昆虫生物量监测，发现飞行昆虫总量下降了约 75%。
生物与医学2017 · 901 分 · 432 评入门 · 约 45 分钟编辑精选为什么大多数已发表的研究发现是错的
Why Most Published Research Findings Are False (2005)
这篇 2005 年发表于 PLOS Medicine 的经典论文由 John Ioannidis 撰写，论证了在统计功效不足、研究偏倚和多重检验等因素下，大多数已发表的医学研究发…
生物与医学2022 · 388 分 · 351 评入门 · 约 60 分钟编辑精选人类免疫系统的物理接线图
A physical wiring diagram for the human immune system
这篇 Nature 论文系统绘制了人类免疫系统的“物理接线图”：通过大规模实验鉴定免疫细胞表面受体之间的相互作用（包括约 30 种此前未知的受体互作），并结合定量计算模型模拟免疫…
生物与医学2022 · 342 分 · 49 评专业 · 约 90 分钟编辑精选脂肪组织在减重后仍保留肥胖的表观遗传记忆
Adipose tissue retains an epigenetic memory of obesity after weight loss
这篇 Nature 论文研究了肥胖对脂肪组织的长期影响：即使减重成功，脂肪细胞仍保留着肥胖时期的表观遗传记忆，可能解释为什么减重后容易反弹。
生物与医学2025 · 263 分 · 327 评进阶 · 约 45 分钟编辑精选